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Olivera A, Estevan I, Tassino B, Rossel C, Silva A. Epidemiology of sleep patterns and circadian typology in uruguayan children: The contribution of school shifts. Sleep Med X 2024; 7:100099. [PMID: 38234312 PMCID: PMC10792258 DOI: 10.1016/j.sleepx.2023.100099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 01/19/2024] Open
Abstract
Healthy sleep is defined by the combination of adequate duration, good quality, and regular timing. In children, sleep thus depends on the interplay of individual, parental, organizational, community, and social variables, but only a few studies have addressed this issue in a comprehensive way nationwide. Using the Uruguayan nationally representative survey (Nutrition, Child Development, and Health Survey, Encuesta de Nutrición, Desarrollo Infantil y Salud, ENDIS), we present the first epidemiological characterization of chronobiological and sleep parameters in Latin American children. On average, Uruguayan urban children (n = 2437; 5-10-years old) showed quite late chronotypes (MSFsc = 03:53 ± 1:07), moderate misalignment (SJL = 1.0 ± 0.9 h), and adequate sleep duration (SDweek = 9.9 ± 1.0 h). Further, we show the substantial influence of school shift schedules on children's circadian typology and sleep patterns. Our results show that children attending the morning school shift have a higher risk of sleep problems than afternoon-school shift ones. The chronotype and sleep were earlier in morning-school shift children than in children attending the afternoon school shift. However, morning-school shift children had stronger misalignment, shorter sleep on school days, and a higher risk of chronic sleep deficit and non-healthy circadian misalignment (even worse in late chronotypes) than afternoon-shift children. This evidence points to the need of evaluating policies to reorganize school start times to prevent the negative effects that early schooling seems to have on children's sleep health, which has been neglected so far.
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Affiliation(s)
- Andrés Olivera
- Grupo Cronobiología, Comisión Sectorial de Investigación Científica, Universidad de la República, Jackson 1301, 11200, Montevideo, Uruguay
- Departamento de Ciencias Sociales, Universidad Católica del Uruguay, 8 de octubre 2768, 11600, Montevideo, Uruguay
| | - Ignacio Estevan
- Grupo Cronobiología, Comisión Sectorial de Investigación Científica, Universidad de la República, Jackson 1301, 11200, Montevideo, Uruguay
- Programa de Neuropsicología y Neurobiología, Facultad de Psicología, Universidad de la República, Tristán Narvaja 1674, 11200, Montevideo, Uruguay
| | - Bettina Tassino
- Grupo Cronobiología, Comisión Sectorial de Investigación Científica, Universidad de la República, Jackson 1301, 11200, Montevideo, Uruguay
- Sección Etología, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400, Montevideo, Uruguay
| | - Cecilia Rossel
- Departamento de Ciencias Sociales, Universidad Católica del Uruguay, 8 de octubre 2768, 11600, Montevideo, Uruguay
| | - Ana Silva
- Grupo Cronobiología, Comisión Sectorial de Investigación Científica, Universidad de la República, Jackson 1301, 11200, Montevideo, Uruguay
- Laboratorio de Neurociencias, Facultad de Ciencias, Universidad de la República, Iguá 4225, 11400, Montevideo, Uruguay
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Dai J, Nianogo R, Wong ND, Moin T, McClain AC, Alver S, Cordero C, Daviglus ML, Qi Q, Sotres-Alvarez D, Chen L. Energy Intake and Dietary Glycemic Load in Late Morning and Risk of Type 2 Diabetes: The Hispanic Community Health Study/Study of Latinos-A Multicenter Prospective Cohort Study. Diabetes Care 2024; 47:1673-1681. [PMID: 39042564 PMCID: PMC11362120 DOI: 10.2337/dc24-0564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 06/20/2024] [Indexed: 07/25/2024]
Abstract
OBJECTIVE To evaluate the association between meal timing and type 2 diabetes risk in U.S. Hispanic/Latino adults. RESEARCH DESIGN AND METHODS The Hispanic Community Health Study/Study of Latinos (HCHS/SOL) is a multicenter, community-based, prospective cohort study. This study included 8,868 HCHS/SOL adults without diabetes at baseline (2008-2011) and attending the visit 2 examination (2014-2017). Energy intake and glycemic load (GL) in each meal timing were assessed at baseline using two 24-h dietary recalls. Incident diabetes was identified through annual follow-up calls or at visit 2. Hazard ratios (HRs) for incident diabetes were estimated using Cox models, accounting for the complex survey design. RESULTS The study population (50.9% female) had a baseline mean age of 39.0 (95% CI, 38.4-39.5) years. Over a median (range) follow-up of 5.8 (0.8-9.6) years, 1,262 incident diabetes cases were documented. Greater energy intake and GL in late morning (9:00-11:59 a.m.) were associated with a lower diabetes risk, whereas greater energy intake and GL in other meal timings were not. After accounting for diet quantity and quality, sociodemographic characteristics, lifestyle factors, and chronic conditions, the HRs were 0.94 (95% CI, 0.91-0.97) per 100-kcal energy intake increment and 0.93 (0.89-0.97) per 10-unit GL increment in late morning. Replacing energy intake or GL from early morning (6:00-8:59 a.m.), afternoon (12:00-5:59 p.m.), or evening (6:00-11:59 p.m.) with late-morning equivalents was associated with a comparably lower diabetes risk. CONCLUSIONS This study identified late morning as a favorable meal timing in Hispanic/Latino adults, providing a novel perspective on type 2 diabetes prevention that warrants confirmation.
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Affiliation(s)
- Jin Dai
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA
| | - Roch Nianogo
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA
| | - Nathan D. Wong
- Heart Disease Prevention Program, Division of Cardiology, University of California, Irvine, Irvine, CA
| | - Tannaz Moin
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
- Health Services Research and Development Center for the Study of Healthcare Innovation, Implementation, and Policy, VA Greater Los Angeles Healthcare System, Los Angeles, CA
| | - Amanda C. McClain
- School of Exercise and Nutritional Sciences, San Diego State University, San Diego, CA
| | - Sarah Alver
- Epidemiology Program, Fred Hutchinson Cancer Center, Seattle, WA
| | | | - Martha L. Daviglus
- College of Medicine and Institute for Minority Health Research, University of Illinois at Chicago, Chicago, IL
| | - Qibin Qi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY
| | - Daniela Sotres-Alvarez
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Liwei Chen
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA
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Lin MY, Kang YN, Apriliyasari RW, Tsai PS. Association Between Social Jetlag and Components of Metabolic Syndrome: A Systematic Review and Meta-Analysis. J Nurs Res 2024:00134372-990000000-00109. [PMID: 39158856 DOI: 10.1097/jnr.0000000000000628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024] Open
Abstract
BACKGROUND A mismatch between biological and social time, often referred to as social jetlag (SJL), can lead to inadequate sleep and activities or taking meals at times that do not align with our biological rhythms, increasing the risk of metabolic abnormalities. Although the association between sleep and metabolic syndrome (MetS) is well established, the effects of SJL on MetS and the components of MetS in adults remain unclear. PURPOSE This study was designed to explore the relationship between SJL and MetS components in adults. METHODS A systematic review and meta-analysis was conducted on studies registered in PubMed, Cochrane, Web of Science, and Embase between the inception of each database until November 15, 2023. We focused on studies designed to evaluate the relationship between SJL and either MetS or its components. Only studies using cross-sectional, prospective, or retrospective designs were considered for inclusion. The relationship between SJL and MetS was depicted as an odds ratio with a corresponding 95% confidence interval (CI). We determined the mean differences and 95% CIs to estimate the associations between SJL and MetS components. The Joanna Briggs Institute Critical Appraisal Checklist was used to evaluate the methodological rigor of the selected studies. Data were analyzed using RevMan software Version 5.4. RESULTS The systematic review included 16 studies, with five analyzed via a meta-analysis covering four outcomes, each based on two to three studies. When comparing SJL of less than 1 hour with SJL of 2 hours or more, the latter showed a higher likelihood of MetS (pooled odds ratio: 1.52). Although a significant decrease in systolic blood pressure (pooled mean differences = -3.52 mmHg, 95% CI [-6.41, -0.64]) and a significant increase in waist circumference (pooled mean differences = 2.17 cm, 95% CI [0.61, 3.73]) were observed, the correlation between SJL and diastolic blood pressure failed to reach statistical significance. CONCLUSIONS/IMPLICATIONS FOR PRACTICE The meta-analysis conducted in this study found an association between SJL and MetS. Healthcare practitioners should prioritize the management of sleep quality and duration, especially for individuals exhibiting substantial SJL. Improving sleep can aid in controlling blood pressure and managing weight and should form part of MetS management strategies.
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Affiliation(s)
- Mei-Yu Lin
- PhD, RN, Assistant Professor, Department of Nursing, Tzu Chi University of Science and Technology, Hualien, Taiwan, ROC
| | - Yi-No Kang
- MS, Doctoral Student, Institute of Health Policy and Management, College of Public Health, National Taiwan University; Researcher, Cochrane Taiwan, Taipei Medical University; Consultant, Evidence-Based Medicine Center, Wan Fang Hospital, Taiwan, ROC
| | | | - Pei-Shan Tsai
- PhD, RN, Professor, School of Nursing, College of Nursing, Taipei Medical University; Department of Nursing and Center for Nursing and Healthcare Research in Clinical Practice Application, Wan Fang Hospital, Taipei Medical University; and Research Center of Sleep Medicine, Taipei Medical University Hospital, Taiwan, ROC
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Sharma P, Nelson RJ. Disrupted Circadian Rhythms and Substance Use Disorders: A Narrative Review. Clocks Sleep 2024; 6:446-467. [PMID: 39189197 PMCID: PMC11348162 DOI: 10.3390/clockssleep6030030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 08/12/2024] [Accepted: 08/15/2024] [Indexed: 08/28/2024] Open
Abstract
Substance use disorder is a major global health concern, with a high prevalence among adolescents and young adults. The most common substances of abuse include alcohol, marijuana, cocaine, nicotine, and opiates. Evidence suggests that a mismatch between contemporary lifestyle and environmental demands leads to disrupted circadian rhythms that impair optimal physiological and behavioral function, which can increase the vulnerability to develop substance use disorder and related problems. The circadian system plays an important role in regulating the sleep-wake cycle and reward processing, both of which directly affect substance abuse. Distorted substance use can have a reciprocal effect on the circadian system by influencing circadian clock gene expression. Considering the detrimental health consequences and profound societal impact of substance use disorder, it is crucial to comprehend its complex association with circadian rhythms, which can pave the way for the generation of novel chronotherapeutic treatment approaches. In this narrative review, we have explored the potential contributions of disrupted circadian rhythms and sleep on use and relapse of different substances of abuse. The involvement of circadian clock genes with drug reward pathways is discussed, along with the potential research areas that can be explored to minimize disordered substance use by improving circadian hygiene.
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Affiliation(s)
- Pallavi Sharma
- Department of Neuroscience, Rockefeller Neuroscience Institute, West Virginia University, Morgantown, WV 26506, USA;
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Crowthers R, Thi Mong Nguyen T, Martinez D. Circadian disruptions and their role in the development of hypertension. Front Neurosci 2024; 18:1433512. [PMID: 39170672 PMCID: PMC11335678 DOI: 10.3389/fnins.2024.1433512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 07/22/2024] [Indexed: 08/23/2024] Open
Abstract
Circadian fluctuations in physiological setpoints are determined by the suprachiasmatic nucleus (SCN) which exerts control over many target structures within and beyond the hypothalamus via projections. The SCN, or central pacemaker, orchestrates synchrony between the external environment and the internal circadian mechanism. The resulting cycles in hormone levels and autonomic nervous system (ANS) activity provide precise messages to specific organs, adjusting, for example, their sensitivity to approaching hormones or metabolites. The SCN responds to both photic (light) and non-photic input. Circadian patterns are found in both heart rate and blood pressure, which are linked to daily variations in activity and autonomic nervous system activity. Variations in blood pressure are of great interest as several cardiovascular diseases such as stroke, arrhythmias, and hypertension are linked to circadian rhythm dysregulation. The disruption of normal day-night cycles, such as in shift work, social jetlag, or eating outside of normal hours leads to desynchronization of the central and peripheral clocks. This desynchronization leads to disorganization of the cellular processes that are normally driven by the interactions of the SCN and photic input. Here, we review autonomic system function and dysfunction due to regulation and interaction between different cardiorespiratory brain centers and the SCN, as well as social, lifestyle, and external factors that may impact the circadian control of blood pressure.
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Magnusdottir S, Magnusdottir I, Gunnlaugsdottir AK, Hilmisson H, Hrolfsdottir L, Paed AEEM. Sleep duration and social jetlag in healthy adolescents. Association with anxiety, depression, and chronotype: a pilot study. Sleep Breath 2024; 28:1541-1551. [PMID: 38546939 DOI: 10.1007/s11325-024-03026-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/23/2024] [Accepted: 03/20/2024] [Indexed: 08/07/2024]
Abstract
PURPOSE Misalignment between sleep opportunity and chronotype preference during adolescence may affect sleep and mental health. The aim of this study was to objectively evaluate sleep duration and social jetlag (SJL) to observe if there is a relationship with anxiety, depression, or chronotype. METHODS Community based cohort study (n = 65) was conducted in Northern Europe. Participants recorded their sleep during the regular school schedule for 3 school nights and 2 free nights with FDA-cleared/EU Medical Device Directive (CE-02862) compliant home sleep test. They also completed validated questionnaires to assess (Morningness Eveningness Questionnaire; MEQ), sleepiness (Epworth Sleepiness Scale; ESS), and insomnia (Insomnia Severity Index; ISI), anxiety (General Anxiety Disorder-7; GAD-7), and depression symptoms (Beck's Depression Inventory-II; BDI-II). Data were collected during the last week of February and the first 2 weeks of March, 2023. RESULTS Average sleep duration on school nights was 7 h, 15 min, with 18% of participants on average sleeping ≥ 8 h. Average sleep onset was significantly later on free nights (1 hour, 47 minutes; p < 0.0001) causing a high prevalence of moderate-severe SJL, in 71% of participants. Evening chronotypes (prevalence 15.4%) fell asleep later on free nights, causing them to have significantly more SJL (2 hours, 58 minutes) than morning chronotypes (1 hour, 32 minutes) and intermediary chronotypes (1 hour, 36 minutes). Evening chronotypes also had more severe insomnia (ISI + 4.4, p = 0.006; + 4.0, p = 0.001) and greater depressive symptoms (BDI-II + 21.6, p < 0.0001; + 17.1, p < 0.0001). A significant negative correlation was observed between MEQ scores and ESS (r = - 0.287; p = 0.001), ISI (r = - 0.343, p < 0.0001), GAD-7 (r = - 0.185, p < 0.0001), BDI-II (r = - 0.501, p = 0.0001), and suicidal thoughts (r = - 0.294, p = 0.017). CONCLUSION Adolescents are sleep-deprived and have a high prevalence of SJL that is positively correlated with depressive symptoms and evening chronotype. That evening chronotypes have shorter sleep duration, more severe SJL, and significantly more sleepiness and insomnia, anxiety, and depressive symptoms may indicate possible benefits in identifying this group with the aim to assist them in improving their sleep habits with potentially positive effects on mental health.
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Affiliation(s)
| | | | - Audur Karen Gunnlaugsdottir
- Akureyri Junior College, Akureyri, Iceland
- University of Akureyri, Akureyri, Iceland
- The Healthcare Institution of North Iceland, Husavik, Iceland
| | - Hugi Hilmisson
- MyCardio LLC, 3200 East Cherry Creek South Drive, Denver, CO, 80209, USA
| | - Laufey Hrolfsdottir
- Institution of Health Science Research, University of Akureyri and Akureyri Hospital, Akureyri, Iceland
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Stutz B, Krueger B, Goletzke J, Jankovic N, Alexy U, Herder C, Dierkes J, Berg-Beckhoff G, Jakobsmeyer R, Reinsberger C, Buyken AE. Glycemic response to meals with a high glycemic index differs between morning and evening: a randomized cross-over controlled trial among students with early or late chronotype. Eur J Nutr 2024; 63:1593-1604. [PMID: 38605233 PMCID: PMC11329680 DOI: 10.1007/s00394-024-03372-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 02/20/2024] [Indexed: 04/13/2024]
Abstract
PURPOSE Glycemic response to the same meal depends on daytime and alignment of consumption with the inner clock, which has not been examined by individual chronotype yet. This study examined whether the 2-h postprandial and 24-h glycemic response to a meal with high glycemic index (GI) differ when consumed early or late in the day among students with early or late chronotype. METHODS From a screening of 327 students aged 18-25 years, those with early (n = 22) or late (n = 23) chronotype participated in a 7-day randomized controlled cross-over intervention study. After a 3-day observational phase, standardized meals were provided on run-in/washout (days 4 and 6) and intervention (days 5 and 7), on which participants received a high GI meal (GI = 72) in the morning (7 a.m.) or in the evening (8 p.m.). All other meals had a medium GI. Continuous glucose monitoring was used to measure 2-h postprandial and 24-h glycemic responses and their variability. RESULTS Among students with early chronotype 2-h postprandial glucose responses to the high GI meal were higher in the evening than in the morning (iAUC: 234 (± 92) vs. 195 (± 91) (mmol/L) × min, p = 0.042). Likewise, mean and lowest 2-h postprandial glucose values were higher when the high GI meal was consumed in the evening (p < 0.001; p = 0.017). 24-h glycemic responses were similar irrespective of meal time. Participants with late chronotype consuming a high GI meal in the morning or evening showed similar 2-h postprandial (iAUC: 211 (± 110) vs. 207 (± 95) (mmol/L) × min, p = 0.9) and 24-h glycemic responses at both daytimes. CONCLUSIONS Diurnal differences in response to a high GI meal are confined to those young adults with early chronotype, whilst those with a late chronotype seem vulnerable to both very early and late high GI meals. Registered at clinicaltrials.gov (NCT04298645; 22/01/2020).
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Affiliation(s)
- Bianca Stutz
- Faculty of Sciences, Institute of Nutrition, Consumption and Health, Paderborn University, Paderborn, Germany
| | - Bettina Krueger
- Faculty of Sciences, Institute of Nutrition, Consumption and Health, Paderborn University, Paderborn, Germany
| | - Janina Goletzke
- Faculty of Sciences, Institute of Nutrition, Consumption and Health, Paderborn University, Paderborn, Germany
| | - Nicole Jankovic
- Nutritional Epidemiology, Department of Nutrition and Food Sciences, Rheinische Friedrich-Wilhelms-University Bonn, DONALD Study Centre, Dortmund, Germany
| | - Ute Alexy
- Nutritional Epidemiology, Department of Nutrition and Food Sciences, Rheinische Friedrich-Wilhelms-University Bonn, DONALD Study Centre, Dortmund, Germany
| | - Christian Herder
- Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), Partner Düsseldorf, Munich-Neuherberg, Germany
- Department of Endocrinology and Diabetology, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Jutta Dierkes
- Department of Clinical Medicine Center, University of Bergen, Bergen, Norway
| | - Gabriele Berg-Beckhoff
- The Faculty of Health Sciences, Department of Public Health, University of Southern Denmark, Esbjerg, Denmark
| | - Rasmus Jakobsmeyer
- Faculty of Sciences, Institute of Sports Medicine, Paderborn University, Paderborn, Germany
| | - Claus Reinsberger
- Faculty of Sciences, Institute of Sports Medicine, Paderborn University, Paderborn, Germany
| | - Anette E Buyken
- Faculty of Sciences, Institute of Nutrition, Consumption and Health, Paderborn University, Paderborn, Germany.
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de Oliveira Lima M, Pedrosa AKP, de Oliveira PMB, de Menezes RCE, Serenini R, Longo-Silva G. Circadian misalignment proxies, BMI, and chronic conditions: the role for weekday to weekend sleep differences. Sleep Breath 2024; 28:1799-1808. [PMID: 38625421 DOI: 10.1007/s11325-024-03027-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/20/2024] [Accepted: 03/25/2024] [Indexed: 04/17/2024]
Abstract
OBJECTIVE To evaluate whether social jet lag (SJL) and weekend catch-up sleep (CUS), proxies of circadian misalignment, were associated with BMI and chronic conditions. METHODS Participants (n = 2,050,18-65y) were part of a virtual cross-sectional and population-based research. We examined CUS and SJL as continuous and categorical (< 1 h,1-2 h, > 2 h). Linear regression analyses were performed to assess the differences in BMI (outcome) associated with CUS and SJL. Restricted cubic splines were performed to explore the shape of the relationship between weekday-to-weekend variability in sleep duration, midpoint, wake time, and bedtime. Logistic regression models were used to estimate ORs(95%CIs) for chronic conditions and overweight related to CUS and SJL. Analyses were adjusted for sleep duration, biological and behavior-related variables. RESULTS We found a positive association of SJL and CUS with BMI. The effects remained even after adjustment for weekly sleep duration and demonstrated a proportional increase with the magnitude of sleep variability. Among participants with SJL > 2 h, BMI increased by 2.29 kg/m2 (95%CI:0.84;3.74,p:0.002). They also had 129% higher odds of chronic conditions (95%CI:1.16;4.52, p:0.01) and 119% higher odds of overweight (95%CI: 1.20;3.98,p:0.01). Individuals with CUS > 2 h presented 78% higher odds of overweight (95%CI:1.27;2.50,p:0.001) and an increase of 1.61 kg/m2 in BMI (95%CI: 0.81; 2.40,p < 0.001). CONCLUSIONS Our findings, which demonstrate that even a slight weekend sleep extension and variability of just 1 h is associated with higher values of BMI, suggest incorporating measures for sleep consistency and regularity into clinical protocols and public health guidelines to prevent and treat obesity and related diseases.
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Affiliation(s)
- Márcia de Oliveira Lima
- Chronobiology, Nutrition, and Health, Faculty of Nutrition, Federal University of Alagoas, Av. Lourival Melo Mota, S/N, Tabuleiro Do Martins, Maceió, AL, CEP 57072-900, Brazil
| | - Anny Kariny Pereira Pedrosa
- Chronobiology, Nutrition, and Health, Faculty of Nutrition, Federal University of Alagoas, Av. Lourival Melo Mota, S/N, Tabuleiro Do Martins, Maceió, AL, CEP 57072-900, Brazil
| | - Priscilla Márcia Bezerra de Oliveira
- Chronobiology, Nutrition, and Health, Faculty of Nutrition, Federal University of Alagoas, Av. Lourival Melo Mota, S/N, Tabuleiro Do Martins, Maceió, AL, CEP 57072-900, Brazil
| | - Risia Cristina Egito de Menezes
- Chronobiology, Nutrition, and Health, Faculty of Nutrition, Federal University of Alagoas, Av. Lourival Melo Mota, S/N, Tabuleiro Do Martins, Maceió, AL, CEP 57072-900, Brazil
| | - Renan Serenini
- Socio-Economic and Statistical Studies, Faculty of Economics, Sapienza University, Rome, Italy
| | - Giovana Longo-Silva
- Chronobiology, Nutrition, and Health, Faculty of Nutrition, Federal University of Alagoas, Av. Lourival Melo Mota, S/N, Tabuleiro Do Martins, Maceió, AL, CEP 57072-900, Brazil.
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Selingardi SDA, Ribeiro SMLT, Freitas SND, Pimenta FAP, Machado-Coelho GLL, Oliveira FLPD, Neto RMDN, Menezes-Júnior LAAD. Temporal patterns of food consumption and their association with cardiovascular risk in rotating shift workers. Clin Nutr ESPEN 2024; 62:95-101. [PMID: 38901954 DOI: 10.1016/j.clnesp.2024.04.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/14/2024] [Accepted: 04/19/2024] [Indexed: 06/22/2024]
Abstract
OBJECTIVE We aimed to evaluate the association of temporal patterns of food consumption with cardiovascular disease (CVD) risk. METHODS This cross-sectional study included male rotating shift workers in an iron ore extraction company. Data on food consumption was collected using a 24 h recall, applied by trained interviewers. The variables for temporal patterns of food consumption were: eating window, eating at night, number of meals and omission of breakfast. CVD-risk was measured by calculating the Framingham coronary heart disease risk score (FCRS), and classified as low risk or intermediate to high risk. Descriptive, univariate and multivariate logistic regression analyses examined the association between variables related to temporal patterns of food consumption and CVD-risk. RESULTS The study assessed 208 workers, the majority with 20-34 years (45.1%), non-white (77.2%), and 5 years or more in shift work (76.0%). Most participants had a feeding window exceeding 12 h (63.9%), consumed meals until 10 p.m. (68.1%), had five or more meals per day (54.8%), and did not skip breakfast (86.5%). Regarding CVD-risk, 43.8% of the participants were classified with intermediate to high risk for CVD. In the multivariate model, a feeding window (OR: 2.32; 95%CI: 1.01-5.35), eating after 10 p.m. (OR: 3.31; 95%CI: 1.01-11.0), and skipping breakfast (OR: 2.58; 95%CI: 1.07-6.19) increased the likelihood of intermediate to high CVD-risk. Conversely, having five or more meals per day decreased the odds (OR: 0.27; 95%CI: 0.08-0.92). CONCLUSION Eating window longer than 12 h, eating after 10 p.m., less than four meals a day and omission of breakfast, are associated with cardiovascular risk in shift workers.
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Affiliation(s)
| | | | | | | | - George Luiz Lins Machado-Coelho
- Post-graduate Program in Health and Nutrition, Nutrition School, Federal University of Ouro Preto. Ouro Preto, Minas Gerais, Brazil; Medical School, Federal University of Minas Gerais. Ouro Preto, Minas Gerais, Brazil
| | | | | | - Luiz Antônio Alves de Menezes-Júnior
- School of Nutrition, Federal University of Ouro Preto. Ouro Preto, Minas Gerais, Brazil; Post-graduate Program in Health and Nutrition, Nutrition School, Federal University of Ouro Preto. Ouro Preto, Minas Gerais, Brazil.
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Bonatto FS, Pilz LK, Borges RB, Xavier NB, Tonon AC, do Amaral FG, Hidalgo MPL. Daylight exposure and mood in real life: Direct association and mediating role of sleep and routine regularity. Chronobiol Int 2024:1-14. [PMID: 39058252 DOI: 10.1080/07420528.2024.2381590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 06/30/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024]
Abstract
The light/dark cycle is the main external cue to synchronize the human biological clock. Modern lifestyles typically lead to less daylight exposure and blunted 24 h-amplitude. We evaluated the association of outdoor daylight exposure (frequency, duration, regularity and shift) with chronotype estimated by sleep phase, regularity of routines, sleep, well-being (WHO-5), and depressive symptoms (PHQ-9), in a sample of 1,095 participants (81.8% female; 87.9% aged 18-49) surveyed online between July and November 2020. We analyzed direct and indirect associations in daylight-mood relationship with chronotype-estimate, routine regularity, and sleep as mediators. Outdoor daylight exposure was associated with WHO-5/PHQ-9 scores in mediation models, with higher total effects when the exposure was every day (β = 4.13 ± 0.53/ β = -3.81 ± 0.67), for more than 4 hours (β = 3.77 ± 0.91/ β = -3.83 ± 1.31) and during the morning (β = 3.41 ± 0.53/ β = -3.74 ± 0.70) in reference to lack of exposure. Chronotype-estimate, routine regularity score, and sleep problems acted as mediators, while social jetlag and sleep duration did not play an important role in this association. This study advanced the understanding of the complex interplay between light exposure, mental health, and individual characteristics of sleep and other routine regularities, and showed the benefits of optimizing daylight exposure to improve mental health.
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Affiliation(s)
- Fernanda S Bonatto
- Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Luísa K Pilz
- ECRC Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
- Department of Anesthesiology and Intensive Care Medicine CCM/CVK, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
| | - Rogério B Borges
- Unidade de Bioestatística - Diretoria de Pesquisa (DIPE), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Department of Statistics, Institute of Mathematics and Statistics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Nicóli B Xavier
- Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - André C Tonon
- Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Maria Paz L Hidalgo
- Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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11
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McHill AW, Melanson EL, Wright KP, Depner CM. Circadian misalignment disrupts biomarkers of cardiovascular disease risk and promotes a hypercoagulable state. Eur J Neurosci 2024. [PMID: 39053917 DOI: 10.1111/ejn.16468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 06/24/2024] [Accepted: 07/01/2024] [Indexed: 07/27/2024]
Abstract
The circadian system regulates 24-h time-of-day patterns of cardiovascular physiology, with circadian misalignment resulting in adverse cardiovascular risk. Although many proteins in the coagulation-fibrinolysis axis show 24-h time-of-day patterns, it is not understood if these temporal patterns are regulated by circadian or behavioral (e.g., sleep and food intake) cycles, or how circadian misalignment influences these patterns. Thus, we utilized a night shiftwork protocol to analyze circadian versus behavioral cycle regulation of 238 plasma proteins linked to cardiovascular physiology. Six healthy men aged 26.2 ± 5.6 years (mean ± SD) completed the protocol involving two baseline days with 8-h nighttime sleep opportunities (circadian alignment), a transition to shiftwork day, followed by 2 days of simulated night shiftwork with 8-h daytime sleep opportunities (circadian misalignment). Plasma was collected for proteomics every 4 h across 24 h during baseline and during daytime sleep and the second night shift. Cosinor analyses identified proteins with circadian or behavioral cycle-regulated 24-h time-of-day patterns. Five proteins were circadian regulated (plasminogen activator inhibitor-1, angiopoietin-2, insulin-like growth factor binding protein-4, follistatin-related protein-3, and endoplasmic reticulum resident protein-29). No cardiovascular-related proteins showed regulation by behavioral cycles. Within the coagulation pathway, circadian misalignment decreased tissue factor pathway inhibitor, increased tissue factor, and induced a 24-h time-of-day pattern in coagulation factor VII (all FDR < 0.10). Such changes in protein abundance are consistent with changes observed in hypercoagulable states. Our analyses identify circadian regulation of proteins involved in cardiovascular physiology and indicate that acute circadian misalignment could promote a hypercoagulable state, possibly contributing to elevated cardiovascular disease risk among shift workers.
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Affiliation(s)
- Andrew W McHill
- Sleep, Chronobiology, and Health Laboratory, School of Nursing, Oregon Health & Science University, Portland, Oregon, USA
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, Oregon, USA
| | - Edward L Melanson
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
- Division of Geriatric Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kenneth P Wright
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
- Sleep and Chronobiology Laboratory, Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Christopher M Depner
- Department of Health and Kinesiology, University of Utah, Salt Lake City, Utah, USA
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12
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Zhu H, Xu Y, Lin D, Wang X, Niu B. Relationship between social jetlag and body mass index in nurses working shift schedules: a cross-sectional study. Sci Rep 2024; 14:16911. [PMID: 39043785 PMCID: PMC11266361 DOI: 10.1038/s41598-024-67644-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 07/15/2024] [Indexed: 07/25/2024] Open
Abstract
This study aimed to explore the relationship between shift-working nurses' social jetlag and body mass index (BMI) and provide a theoretical basis for nursing managers to develop appropriate health interventions. Shift work is unavoidable in nursing and is associated with circadian rhythm disorders. Social jetlag is prevalent in shift-working nurses and is associated with adverse health outcomes (particularly metabolism-related indicators). BMI is a significant metabolic indicator, and research has demonstrated its effectiveness in predicting the formation of metabolic syndrome. The relationship between social jetlag and BMI can be explained by considering physiological, psychological, and behavioral factors. However, most studies on social jetlag and health status are focused on non-shift nurse populations, with fewer studies on shift workers. Five tertiary hospitals located at similar latitudes in Southwest China were selected for the study. We surveyed 429 shift-working nurses using sociodemographic data, the Munich Chronotype Questionnaire for Shift Workers, and BMI. The restricted cubic spline model was used to analyze the relationship between social jetlag and BMI among shift-working nurses, and segmented linear regression was performed around the inflection point using multiple linear regression analysis. The results revealed that social jetlag (82.0 [85.0] min) was experienced by 64.6% of the shift-working nurses. After controlling for confounding variables, the model with seven knots had the lowest accepted Akaike information criterion value, and there was a U-shaped relationship between shift-working nurses' BMI and social jetlag in this model; its inflection (lowest) point of 20.7 was considered the cut-off point. Segmented regression showed that for BMI < 20.7, BMI was significantly negative with standardized social jetlag; whereas with BMI > 20.7, BMI was significantly positive with standardized social jetlag. BMI has a U-shaped relationship with social jetlag, and attention should be paid to overweight or underweight shift-working nurses to detect early circadian rhythm disorder. Shift-working nurses with high social jetlag tended to have higher/lower BMI, which should be further investigated in the future, to minimize metabolic diseases among them.
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Affiliation(s)
- Hongxu Zhu
- School of Nursing, Chengdu University, Chengdu, China
| | - Yi Xu
- School of Nursing, Chengdu University, Chengdu, China.
| | - Daiqiong Lin
- Department of Nursing, The Second People's Hospital of Neijiang City, Neijiang, China
| | - Xiaohui Wang
- Department of Nursing, The Affiliated Hospital of Chengdu University, Chengdu, China
| | - Bei Niu
- School of Nursing, Chengdu University, Chengdu, China
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Lan A, Stukalin Y, Einat H. Sleep Quality, but Not Personality Traits, Mediates the Relationship between Chronotype and Life Satisfaction: A Study in Young Adults. Clocks Sleep 2024; 6:312-321. [PMID: 39189189 PMCID: PMC11348206 DOI: 10.3390/clockssleep6030022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/20/2024] [Accepted: 07/17/2024] [Indexed: 08/28/2024] Open
Abstract
Chronotype reflects the morningness-eveningness preference over a 24 h period. Significant data indicate meaningful differences between evening types (ETs) and morning types (MTs) in behavior, personality traits, health, and well-being. This study explores the interactions between chronotype, sleep, personality, and life satisfaction among 254 undergraduate college students (mean age 23.79 ± 1.85). Using online questionnaires, the participants provided demographic information and completed assessments, including the Morningness-Eveningness Questionnaire (MEQ), the Pittsburg Sleep Quality Index (PSQI), a shortened version of the Big Five Inventory (BFI-10), and a life satisfaction uniscale measure. The results revealed a significant association between chronotype and both life satisfaction and sleep quality, where ETs exhibited poorer outcomes compared to MTs. Additionally, the chronotype correlated with agreeableness and conscientiousness, with later chronotypes linked to reduced scores in these personality traits. A key finding in this study was revealed in a mediation analysis in which sleep quality was found to mediate the relationship between chronotype and life satisfaction. The mediation analysis highlighted sleep quality as a crucial process connecting chronotype to life satisfaction. The findings emphasize the importance of addressing sleep quality in interventions aimed at enhancing life satisfaction and overall well-being among ETs. Overall, our results provide valuable insights into the intricate relationships between chronotype, personality, sleep quality, and subjective well-being.
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Affiliation(s)
- Anat Lan
- School of Behavioral Sciences, Tel-Aviv-Yaffo Academic College, Tel-Aviv 6818211, Israel (H.E.)
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14
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Kant AK, Graubard BI. Self-Reported Weekend Temporal Eating Patterns of American Adults Differ From Weekday: National Health and Nutrition Examination Surveys: 2015-2020 Prepandemic. J Acad Nutr Diet 2024:S2212-2672(24)00718-4. [PMID: 39032606 DOI: 10.1016/j.jand.2024.07.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND Weekend-weekday differences in time of ingestive events may be implicated in adverse metabolic and health outcomes. However, little is known about the nature of weekend-weekday differences in temporal eating behaviors of the US adult population. OBJECTIVE The study aimed to examine weekend-weekday differences in temporal and energy characteristics of ingestive events self-reported by American adults. DESIGN Observational; within-person comparative. PARTICIPANTS/SETTING The data were from the National Health and Nutrition Examination Surveys (NHANES) 2015-March 2020 (pre-pandemic) for ≥20-year-old adults who provided 1 weekday (M-Th) and 1 weekend (F, S, Su) 24-h dietary recall (n = 3564 men and 3823 women). MAIN OUTCOME MEASURES Prespecified primary temporal outcomes were recalled: time of ingestive events, and the duration of ingestive and fasting windows. Secondary outcomes included frequency and energy characteristics of ingestive events. STATISTICAL ANALYSIS PERFORMED Gender-specific, survey-weighted, multiple linear regression models that accounted for complex survey design with dummy covariates for weekend/weekday, mode of recall administration (in-person on day 1 and telephone on day 2), and a respondent-specific fixed intercept. RESULTS In both men and women, the weekend recalled time of first ingestive event, breakfast, and lunch were later than weekday (P ≤ .0008); however, no statistically significant differences were observed in time of dinner and the last eating episode. The mean weekend ingestive window (interval between the time of first and last eating events of the day) was shorter by 24 minutes (95% confidence interval [CI], -32, -11) in men and 18 minutes (95% CI, -20, -15) in women, and the mean overnight fasting window was correspondingly longer (P ≤ .0001). No statistically significant differences were observed between weekend and weekday frequency of ingestive events. Energy density of weekend food selections reported by women, and of beverages by men, was found to be higher than weekday (P ≤ .002). CONCLUSIONS Weekend ingestive patterns were characterized by later time of first ingestive event, breakfast, and lunch, and selection of higher-energy-density foods and beverages.
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Affiliation(s)
- Ashima K Kant
- Department of Family, Nutrition, and Exercise Sciences, Queens College of the City University of New York, Flushing, New York.
| | - Barry I Graubard
- Senior Investigator, Division of Cancer Epidemiology and Genetics, Biostatistics Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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15
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Schrader LA, Ronnekleiv-Kelly SM, Hogenesch JB, Bradfield CA, Malecki KM. Circadian disruption, clock genes, and metabolic health. J Clin Invest 2024; 134:e170998. [PMID: 39007272 PMCID: PMC11245155 DOI: 10.1172/jci170998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024] Open
Abstract
A growing body of research has identified circadian-rhythm disruption as a risk factor for metabolic health. However, the underlying biological basis remains complex, and complete molecular mechanisms are unknown. There is emerging evidence from animal and human research to suggest that the expression of core circadian genes, such as circadian locomotor output cycles kaput gene (CLOCK), brain and muscle ARNT-Like 1 gene (BMAL1), period (PER), and cyptochrome (CRY), and the consequent expression of hundreds of circadian output genes are integral to the regulation of cellular metabolism. These circadian mechanisms represent potential pathophysiological pathways linking circadian disruption to adverse metabolic health outcomes, including obesity, metabolic syndrome, and type 2 diabetes. Here, we aim to summarize select evidence from in vivo animal models and compare these results with epidemiologic research findings to advance understanding of existing foundational evidence and potential mechanistic links between circadian disruption and altered clock gene expression contributions to metabolic health-related pathologies. Findings have important implications for the treatment, prevention, and control of metabolic pathologies underlying leading causes of death and disability, including diabetes, cardiovascular disease, and cancer.
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Affiliation(s)
| | - Sean M Ronnekleiv-Kelly
- Molecular and Environmental Toxicology Center and
- Department of Surgery, Division of Surgical Oncology, School of Medicine and Public Health, University of Wisconsin, Madison Wisconsin, USA
| | - John B Hogenesch
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | | | - Kristen Mc Malecki
- Molecular and Environmental Toxicology Center and
- Department of Population Health Sciences, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, USA
- Division of Environmental and Occupational Health Sciences, University of Illinois Chicago, Chicago, Illinois, USA
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16
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Zhang E, Li H, Han H, Wang Y, Cui S, Zhang J, Chen M, Li Y, Qi H, Takahashi M, Xiang M. Dietary Rhythmicity and Mental Health Among Airline Personnel. JAMA Netw Open 2024; 7:e2422266. [PMID: 39008296 DOI: 10.1001/jamanetworkopen.2024.22266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/16/2024] Open
Abstract
Importance Misaligned dietary rhythmicity has been associated with metabolic diseases; however, its association with mental health remains largely unexplored. Objective To examine the association between dietary rhythms and the mental health condition of shift workers, specifically airline crew members. Design, Setting, and Participants This cross-sectional study analyzed data collected from the Civil Aviation Health Cohort of China, an ongoing large-scale health survey of pilots, flight attendants, and air security officers employed by major airline companies in China. Participants aged 18 to 60 years were invited through text messages to complete a web-based survey. The data collection period was December 2022 to March 2023. Statistical analysis was performed from July 24, 2023, to April 12, 2024. Exposure Data on timing of breakfast and dinner on workdays and rest days, daily time windows for food intake, and meal and eating jet lags were collected and calculated. Main Outcomes and Measures Anxiety and depressive symptoms were measured using the 7-item Generalized Anxiety Disorder Assessment and the 9-item Patient Health Questionnaire. Multivariate logistic regressions were performed to evaluate the associations of anxiety and depression with meal timing, eating window time, meal jet lag (ie, delayed meals), and eating jet lag (ie, delayed eating). All models were adjusted for individual socioeconomic, demographic, and lifestyle characteristics. Results Of the 22 617 participants (median [IQR] age, 29.1 [26.3-33.7] years; 13 712 males [60.6%]), 1755 (7.8%) had anxiety and 2768 (12.2%) had depression. After controlling for confounding factors, having dinner after 8 pm on morning-shift days was associated with increased odds of anxiety (adjusted odds ratio [AOR], 1.78; 95% CI, 1.53-2.05) and depression (AOR, 2.01; 95% CI, 1.78-2.27), compared with consuming dinner before 8 pm. Similar results were observed on night-shift days and rest days. An eating window of less than 12 hours was associated with reduced odds of anxiety (AOR, 0.84; 95% CI, 0.75-0.93) and depression (AOR, 0.81; 95% CI, 0.75-0.89) on morning-shift days; the results remained significant on rest days. Delayed dinner on morning-shift days was associated with increased odds of anxiety (AOR, 1.32; 95% CI, 1.13-1.54) and depression (AOR, 1.39; 95% CI, 1.22-1.58). On night-shift days, delayed dinner was associated with higher odds of anxiety (AOR, 1.22; 95% CI, 1.06-1.39) and depression (AOR, 1.21; 95% CI, 1.08-1.36). On morning-shift days, delayed eating rhythms were associated with higher odds of depression (AOR, 1.35; 95% CI, 1.13-1.61), whereas advanced eating rhythms were associated with lower odds of anxiety (AOR, 0.78; 95% CI, 0.70-0.87). Conclusions and Relevance This cross-sectional study found that meal timing, long eating window, and meal jet lags were associated with increased odds of depression and anxiety. These findings underscore the need for interventions and supportive policies that help mitigate the adverse implications of shift work and irregular working hours for the mental health of shift workers.
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Affiliation(s)
- Erliang Zhang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Huilun Li
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Hangyu Han
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Yuhua Wang
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Shuheng Cui
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Zhang
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Minzhi Chen
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
| | - Yunfei Li
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Haodong Qi
- Malmö Institute for Studies of Migration, Diversity and Welfare, Malmö University, Malmö, Sweden
| | - Masaki Takahashi
- Institute for Liberal Arts, Tokyo Institute of Technology, Meguro, Tokyo, Japan
| | - Mi Xiang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, China
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17
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Ekiz Erim S, Sert H. The effect of circadian timing program for evening-chronotype individuals with obesity on obesity management and sleep quality: A randomized controlled trial. Sleep Med 2024; 119:58-72. [PMID: 38652930 DOI: 10.1016/j.sleep.2024.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
OBJECTIVES The study aimed to investigate the effect of the circadian timing program (SİZAP) developed for evening-chronotype individuals with obesity on obesity management and sleep quality. METHODS This single-site, randomized controlled trial with an experimental research design was registered in ClinicalTrials.gov. It was reported in accordance with the "Consolidated Standards of Reporting Trials" (CONSORT) randomized controlled trial guidelines. The study sample consisted of 38 evening-chronotype individuals with first-degree obesity, with 19 individuals in each study group. The intervention group's sleep hygiene training was conducted and their lifestyle changes were ensured through SİZAP. The control group followed their normal daily lifestyle. No intervention was made in terms of the dietary practices of both groups. Study data were collected using the personal information form, the anthropometric measurement form, the Horne and Ostberg Morning and Evening Questionnaire (MEQ), the Impact of weight on quality of life-lite (IWQOL-lite), the Pittsburgh Sleep Quality Index (PSQI), the Epworth Sleepiness Scale (ESS), the sleep diary, and the data tracked via the website and smart bracelets. RESULTS It was determined that the participants in the SİZAP group had a statistically significant decrease in the anthropometric measurements and daytime sleepiness (p < 0.05). The sleep quality scores and the scores of the bodily functions sub-dimension of the quality of life scale were significantly better in the intervention group than in the control group (p < 0.05). CONCLUSION It was found that SİZAP is effective in obesity management in evening-chronotype individuals and increases weight loss success and sleep quality.
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Affiliation(s)
- Seçil Ekiz Erim
- Deparment of Internal Medicine Nursing, Faculty of Health Science, Kocaeli University, Kocaeli, Türkiye.
| | - Havva Sert
- Deparment of Internal Medicine Nursing, Faculty of Health Science, Sakarya University, Sakarya, Türkiye.
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Koren D, Knutson KL, Burke BK, Drews KL, Bacha F, Katz L, Marcus MD, McKay S, Nadeau K, Mokhlesi B. The association of self-reported sleep and circadian measures with glycemic control and diabetes complications among young adults with type 2 diabetes. Am J Physiol Heart Circ Physiol 2024; 326:H1386-H1395. [PMID: 38607342 DOI: 10.1152/ajpheart.00550.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 03/19/2024] [Accepted: 04/04/2024] [Indexed: 04/13/2024]
Abstract
We aim to examine the association of sleep duration, sleep quality, late chronotype, and circadian misalignment with glycemic control and risk of complications in young adults with youth-onset type 2 diabetes followed in the Treatment Options for Type 2 Diabetes in Adolescents and Youth (TODAY) study. Self-reported sleep duration, quality, timing, and circadian misalignment were assessed via a modified Pittsburgh Sleep Quality Index (PSQI) questionnaire, and chronotype was assessed via the Morningness-Eveningness Questionnaire (MEQ). We examined diabetes complications including loss of glycemic control (defined as hemoglobin A1c ≥8%), hypertension, dyslipidemia, albuminuria, and diabetic peripheral neuropathy. Multivariable logistic regression models were constructed to assess associations between sleep and circadian measures with outcomes of interest, such as loss of glycemic control and diabetes complications. A total of 421 participants (34.2% male), mean age 23.6 ± 2.5 yr, mean body mass index (BMI) of 36.1 ± 8.3 kg/m2, and mean diabetes duration of 10.0 ± 1.5 yr were evaluated. Self-reported short sleep duration, daytime sleepiness, and sleep quality were not associated with loss of glycemic control or diabetes complications. Late self-reported bedtime (after midnight) on work/school nights, rather than self-expressed chronotype or circadian misalignment, was independently associated with loss of glycemic control. An association was seen between late bedtimes and albuminuria but was attenuated after adjusting for depression. In conclusion, late bedtime on work/school days, rather than short sleep duration, daytime sleepiness, or poor sleep quality, was independently associated with loss of glycemic control in this longitudinal cohort of young adults with youth-onset type 2 diabetes.NEW & NOTEWORTHY The prevalence of type 2 diabetes in youth is increasing at an alarming rate. Identifying potentially modifiable factors modulating glycemic control is critically important to reduce micro and macrovascular complications. In a large cohort of youth-onset type 2 diabetes, self-reported late bedtime on work/school days was independently associated with loss of glycemic control in this longitudinal cohort of young adults with youth-onset type 2 diabetes.
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Affiliation(s)
- Dorit Koren
- Massachusetts General Hospital, Boston, Massachusetts, United States
| | | | - Brian K Burke
- The Biostatistics Center, George Washington University, Rockville, Maryland, United States
| | - Kimberly L Drews
- The Biostatistics Center, George Washington University, Rockville, Maryland, United States
| | - Fida Bacha
- Baylor College of Medicine, Houston, Texas, United States
| | - Lorraine Katz
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
| | - Marsha D Marcus
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Siripoom McKay
- Baylor College of Medicine, Houston, Texas, United States
| | - Kristen Nadeau
- University of Colorado Anschutz Medical Center, Aurora, Colorado, United States
| | - Babak Mokhlesi
- Rush University Medical Center, Chicago, Illinois, United States
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19
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Li AR, Thomas ML, Gonzalez MR, McCarthy MJ, Hasler BP, Tapert SF, Meruelo AD. Greater social jetlag predicts poorer NIH Toolbox crystallized cognitive and academic performance in the Adolescent Brain Cognitive Development (ABCD) study. Chronobiol Int 2024; 41:829-839. [PMID: 38771191 PMCID: PMC11292803 DOI: 10.1080/07420528.2024.2353848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 05/01/2024] [Indexed: 05/22/2024]
Abstract
Academic performance plays a crucial role in long-term educational attainment and occupational function. Chronotype refers to an individual's daily tendencies for times for waking, activity, and sleep. Social jetlag reflects the mismatch between an individual's chronotype and their social schedule. Because school typically starts early in the morning, later chronotype is often associated with daytime sleepiness, insufficient sleep, and poor academic performance. However, the relationship between academic performance, chronotype, and social jetlag has not been extensively examined in large samples like the Adolescent Brain Cognitive Development (ABCD) study. We hypothesized that greater social jetlag would predict poorer cognitive and academic performance. Year 2 (ages 11-14) cross-sectional data from the ABCD cohort (n = 6,890 adolescents) were used to evaluate academic performance (i.e. self-reported past year grades), NIH Toolbox cognitive performance measures, chronotype, and social jetlag from the Munich Chronotype Questionnaire. We found that later chronotype and greater social jetlag predicted poorer cognitive and academic performance with small effect sizes. Our findings emphasize the importance of individual differences in chronotype and social jetlag when designing class schedules, as aligning school activities with student optimal sleep-wake times may contribute to improved academic performance.
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Affiliation(s)
- Amber R. Li
- University of California, San Diego, 9500 Gilman Dr, La Jolla, CA 92093 USA
| | - Michael L. Thomas
- Colorado State University, 1876 Campus Delivery, Fort Collins, CO 80523-1876 USA
| | | | - Michael J. McCarthy
- University of California, San Diego, VA San Diego Healthcare System, 3350 La Jolla Village Dr, San Diego, CA 92161 USA
| | - Brant P. Hasler
- University of Pittsburgh, 3811 O’Hara St., Pittsburgh, PA 15213 USA
| | - Susan F. Tapert
- University of California, San Diego, 9500 Gilman Dr, La Jolla, CA 92093 USA
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Shibata M, Fujibayashi M, Shibata S, Kuzuhara K, Tanida K. Association between Social Jetlag and Objective Physical Activity among Female University Students of Japan: A Cross-Sectional Study. Sleep Sci 2024; 17:e151-e156. [PMID: 38846588 PMCID: PMC11152629 DOI: 10.1055/s-0043-1777777] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 08/27/2023] [Indexed: 06/09/2024] Open
Abstract
Objective Discrepancies between sleep timing on work/school and free days, also known as social jetlag (SJL), can cause health problems. These issues occur most often in individuals from adolescence to the early 20s, which is equivalent to the age of university students. This study was designed to explore the recommended level of physical activity required to minimize SJL and to examine the relationship between SJL and objective physical activity among female university students. Methods We assessed the SJL of 68 female students using the Japanese version of the Munich Chronotype Questionnaire. The objective physical activity and sleep variables of subjects were also evaluated at 3 to 4 weeks using a small triaxial accelerometer. Results A significant negative correlation was found between SJL and physical activity on both free (r = - 0.435, p < 0.001) and school days (r = - 0.341, p < 0.01). According to the linear regression analysis, physical activity of 11,174 steps on school days and 10,713 steps on free days had the lowest SJL value. Total sleep time on free days had a significant positive correlation with SJL (r = 0.399, p < 0.001) and a negative correlation with physical activity (r = - 0.520, p < 0.001). Discussion Our results suggest that substantial SJL may cause chronic fatigue and lead to a low level of physical activity in female university students. These results also imply that the recommended level of physical activity necessary to minimize SJL among these students is around 11,000 steps on both school and free days.
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Affiliation(s)
- Masashi Shibata
- Laboratory of Exercise Science, College of Nursing Art and Science, University of Hyogo, Akashi, Hyogo, Japan
| | - Mami Fujibayashi
- Laboratory of Exercise Physiology, Faculty of Agriculture, Setsunan University, Hirakata, Osaka, Japan
| | - Shiori Shibata
- Foundation of Nursing Region, Kobe City College of Nursing, Kobe, Hyogo, Japan
| | - Kenji Kuzuhara
- Department of Athletic Training and Conditioning, School of Health and Sports Sciences, Chukyo University, Toyota, Aichi, Japan
| | - Keiko Tanida
- Laboratory of Nursing Physiology and Anatomy, College of Nursing Art and Science, University of Hyogo, Akashi, Hyogo, Japan
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Chen Q, Gong L, Song Y, Zhang J, Han X, Zhou Y, Li L, Jiang X, Hao Y, Zhou H, Lou X, Wang X. Associations between multiple sleep dimensions and suicide and non-suicidal self-injury: a cross-sectional study of 3828 Chinese young people. Soc Psychiatry Psychiatr Epidemiol 2024:10.1007/s00127-024-02689-z. [PMID: 38780778 DOI: 10.1007/s00127-024-02689-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/17/2024] [Indexed: 05/25/2024]
Abstract
PURPOSE Suicide and non-suicidal self-injury (NSSI) are preventable concerns in young people. Suicidal ideation (SI), suicidal plans (SP) and suicidal attempt (SA) are closely related to death. Sleep problems are known risk factors for suicide and NSSI. This study aimed to explore the relationship between sleep, suicidality and NSSI. METHODS Participants were 3,828 middle school and college students aged 11-23 years from urban and rural areas of Henan Province. Sleep, suicidal phenomena and NSSI were assessed by applying self-reported questionnaires. Chi-squared tests were utilized to demonstrate the demographic data and sleep variables. The correlation between sleep, suicidality and NSSI were explored by using binary logistic regression, while adjusting socio-demographic characteristics with multivariate models. RESULTS Sleep variables except mid-sleep time were related to suicidal phenomena (P < 0.05). Greater social jet lag (SJL) [≥ 2 h (h)] was associated with increased risk of SI [Odds ratios (OR) = 1.72, 95% confidence intervals (CI):1.40-2.11], SP (OR = 2.10, 95%CI:1.59-2.79) and SA (OR = 1.50, 95%CI:1.00-2.26). Non-only child participants with SJL (≥ 2 h) had significantly increased odds of SI (OR = 1.75, 95%CI: 1.41-2.18) and SP (OR = 2.25, 95%CI: 1.66-3.05). Eveningness chronotype had the strongest correlation with SI (OR = 3.87, 95%CI:2.78-5.38), SP (OR = 4.72, 95%CI:2.97-7.50), SA (OR = 6.69, 95%CI:3.08-14.52) and NSSI (OR = 1.39, 95%CI:1.02-1.90). CONCLUSION Overlong or short sleep duration, SJL, eveningness chronotype and other sleep abnormalities (e.g., daytime dysfunction, low sleep efficiency) were associated with a higher prevalence of SI, SP and SA. Additionally, eveningness was significantly correlated with NSSI among young people. These findings suggested the importance of assessing and intervening in sleep habits to prevent suicide and NSSI in young people.
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Affiliation(s)
- Qiuyuan Chen
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Lu Gong
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Yalin Song
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Jiangtao Zhang
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Xinke Han
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Yuhang Zhou
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Lijie Li
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Xili Jiang
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Yudan Hao
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Huijun Zhou
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Xiaomin Lou
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China
| | - Xian Wang
- College of Public Health, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, Henan, 450001, PR China.
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22
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Bondopandhyay U, McGrath J, Coogan AN. Associations between sleep problems in children with ADHD and parental insomnia and ADHD symptoms. PLoS One 2024; 19:e0298377. [PMID: 38771841 PMCID: PMC11108211 DOI: 10.1371/journal.pone.0298377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 01/24/2024] [Indexed: 05/23/2024] Open
Abstract
Sleep problems are common in children with attention deficit hyperactivity disorder (ADHD). Children's sleep problem may influence, and be influenced by, parents' sleep problems as well as parents' ADHD symptoms. In the current study we examined the associations of parent-rated sleep quality and sleep timing of pre-adolescent children with parental insomnia symptoms, parental ADHD symptoms and dysfunctional attitudes and beliefs about sleep in a convenience sample recruited by advertisement (N = 120). Childhood sleep problems were common in the sample, with 82% of children exceeding the threshold for the presence of a paediatric sleep disorder. Children's sleep quality showed minimal association with their sleep timing and chronotype. Parental insomnia symptoms, ADHD symptoms and dysfunctional beliefs and attitudes about sleep all associated with their children's sleep quality, and with the sleep subdomains of sleep anxiety and parasomnias. In multiple regression analysis only parental insomnia score was a significant predictor of children's sleep quality. Children's bedtimes, wake times, sleep duration, chronotype or social jetlag did not associate with parents' ADHD or insomnia symptoms. Sleep quality was significantly poorer in children whose parents scored as both consistent for adult ADHD and probable for insomnia disorder compared to parents who scored as either ADHD consistent or insomnia probable, or those who parents scored as neither. We discuss the putative nature of the relationships between sleep quality of children with ADHD and parental ADHD and insomnia symptoms, and suggest that clinicians consider parental sleep when attending to children with ADHD.
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Affiliation(s)
- Upasana Bondopandhyay
- Department of Psychology, Maynooth University, National University of Ireland, Maynooth, Ireland
| | - Jane McGrath
- Dublin and Department of Psychiatry, Linn Dara Child and Adolescent Mental Health Service, Trinity College, Dublin, Ireland
| | - Andrew N. Coogan
- Department of Psychology, Maynooth University, National University of Ireland, Maynooth, Ireland
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23
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Tracy EL, Chin BN, Lehrer HM, Hasler BP, Thomas MC, Smagula S, Kimutis S, Hall MH, Buysse DJ. Behavioral-Social Rhythms and Cardiovascular Disease Risk in Retired Night Shift Workers and Retired Day Workers. Psychosom Med 2024; 86:227-233. [PMID: 38573015 PMCID: PMC11081820 DOI: 10.1097/psy.0000000000001287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
OBJECTIVE Stability in the timing of key daily routine behaviors such as working/doing housework, sleeping, eating, and engaging in social interactions (i.e., behavioral-social rhythms) contributes to health. This study examined whether behavioral-social rhythms were associated with cardiovascular disease (CVD) risk factors in retired night shift workers and retired day workers and explored whether past night shift work exposure moderated this association. METHODS A total of 154 retired older adults participated in this study. Multiple logistic regression models were used to examine associations between behavioral-social rhythms and CVD risk factors. Independent variables included Social Rhythm Metric (SRM)-5 score and actigraphy rest-activity rhythm intradaily variability (IV) and interdaily stability (IS). Dependent variables were metabolic syndrome prevalence and its five individual components. RESULTS More regular behavioral-social rhythms were associated with lower odds of prevalent metabolic syndrome (SRM: odds ratio [OR] = 0.57, 95% confidence interval [CI] = 0.35-0.88; IV: OR = 4.00, 95% CI = 1.86-8.58; IS: OR = 0.42, 95% CI = 0.24-0.73) and two of its individual components: body mass index (SRM: OR = 0.56, 95% CI = 0.37-0.85; IV: OR = 2.84, 95% CI = 1.59-5.07; IS: OR = 0.42, 95% CI = 0.26-0.68) and high-density lipoprotein cholesterol (SRM: OR = 0.49, 95% CI = 0.30-0.80; IV: OR = 2.49, 95% CI = 1.25-4.96; IS: OR = 0.35, 95% CI = 0.19-0.66). Past shift work history did not moderate the association between behavioral-social rhythms and metabolic syndrome. CONCLUSIONS Behavioral-social rhythms were related to CVD risk factors in retired adults regardless of prior night shift work exposure. Older retired workers may benefit from education and interventions aiming to increase behavioral-social rhythm regularity.
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Affiliation(s)
- Eunjin Lee Tracy
- From the Department of Human Development and Family Science (Tracy), University of Missouri, Columbia, Missouri; Department of Psychology (Chin), Trinity College, Hartford, Connecticut; Department of Psychiatry (Lehrer, Hasler, Smagula, Kimutis, Hall, Buysse), University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; and VISN 4 Mental Illness Research (Thomas), Education and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
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24
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Jiang J, Chen G, Song X, Lu J, Wang J, Ding F, Ba L, Mei J. Effects of chronotype on sleep, mood and cardiovascular circadian rhythms in rotating night shift medical workers. Int Arch Occup Environ Health 2024; 97:461-471. [PMID: 38429581 DOI: 10.1007/s00420-024-02060-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/23/2024] [Indexed: 03/03/2024]
Abstract
PURPOSE Whether chronotype affects the health outcomes of night shift work populations is unknown. This study aimed to assess the influence of different chronotypes in the rotating night shift population on sleep status, mood, blood pressure (BP), and heart rate variability (HRV), as well as the circadian rhythm of BP and HRV. METHODS A total of 208 rotating night shift workers were included. All participants completed structured questionnaires to assess chronotype, mood and sleep status. During their daily lives outside of the night shift, they underwent 24-hour Holter electrocardiogram monitoring and 24-hour ambulatory blood pressure monitoring. Day-time and night-time BP and BP dipping were obtained. Day-time and night-time HRV values (SDNN, RMSSD, LF, HF, LF nu, SD1, SD2 and SD2/SD1) were calculated and fitted to the cosine period curve. Three circandian parameters (mesor, amplitude and acrophase) were extracted to quantify the circadian rhythm of the HRV indices. RESULTS Among all three groups, E-type showed more fatigue and sleepiness. In addition, E-type showed blunted diastolic BP dipping. Notably, E-type showed association with higher RMSSD, LF, HF and SD1 in the night time, and higher mesors of RMSSD and LF and amplitude of SD2/SD1 in circadian analysis. CONCLUSION Chronotype is a factor affecting fatigue, sleepiness and cardiovascular circadian rhythms of rotating night shift workers. Chronotype should be taken into consideration for managing night-shift rotation to promote occupational health.
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Affiliation(s)
- Jinzhen Jiang
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
- The First Clinical Medical Institute, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, People's Republic of China
| | - Guohua Chen
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
| | - Xinhua Song
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
- The First Clinical Medical Institute, Hubei University of Chinese Medicine, Wuhan, 430065, Hubei, People's Republic of China
| | - Jiajia Lu
- Electrocardiogram Unit, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
| | - Jing Wang
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China
| | - Fengfei Ding
- Department of Pharmacology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Li Ba
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
| | - Junhua Mei
- Department of Neurology, Wuhan No.1 Hospital, Wuhan, 430022, People's Republic of China.
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25
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Rodríguez Ferrante G, Leone MJ. Solar clock and school start time effects on adolescents' chronotype and sleep: A review of a gap in the literature. J Sleep Res 2024; 33:e13974. [PMID: 37370220 DOI: 10.1111/jsr.13974] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 05/11/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023]
Abstract
Circadian rhythms are entrained by external factors such as sunlight and social cues, but also depend on internal factors such as age. Adolescents exhibit late chronotypes, but worldwide school starts early in the morning leading to unhealthy sleep habits. Several studies reported that adolescents benefit from later school start times. However, the effect of later school start time on different outcomes varies between studies, and most previous literature only takes into consideration the social clock (i.e. local time of school starting time) but not the solar clock (e.g. the distance between school start time and sunrise). Thus, there is an important gap in the literature: when assessing the effect of a school start time on chronotype and sleep of adolescents at different locations and/or seasons, the solar clock might differ and, consistently, the obtained results. For example, the earliest school start time for adolescents has been suggested to be 08:30 hours, but this school start time might correspond to different solar times at different times of the year, longitudes and latitudes. Here, we describe the available literature comparing different school start times, considering important factors such as geographic position, nationality, and the local school start time and its distance to sunrise. Then, we described and contrasted the relative role of both social and solar clocks on the chronotype and sleep of adolescents. As a whole, we point and discuss a gap in literature, suggesting that both clocks are relevant when addressing the effect of school start time on adolescents' chronotype and sleep.
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Affiliation(s)
- Guadalupe Rodríguez Ferrante
- Laboratorio de Neurociencia, Universidad Torcuato Di Tella, CONICET, Buenos Aires, Argentina
- Laboratorio de Cronobiología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, CONICET, Buenos Aires, Argentina
| | - María Juliana Leone
- Laboratorio de Neurociencia, Universidad Torcuato Di Tella, CONICET, Buenos Aires, Argentina
- Área de Educación, Escuela de Gobierno, Universidad Torcuato Di Tella, Buenos Aires, Argentina
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26
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Rolling J, Ligier F, Rabot J, Bourgin P, Reynaud E, Schroder CM. Sleep and circadian rhythms in adolescents with attempted suicide. Sci Rep 2024; 14:8354. [PMID: 38594272 PMCID: PMC11004139 DOI: 10.1038/s41598-024-57921-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 03/22/2024] [Indexed: 04/11/2024] Open
Abstract
Sleep and circadian rhythm disorders are very common in adolescents and have been linked to suicidal ideation. However, little is known about adolescent sleep before a suicide attempt (SA). The objectives of this study were to compare the sleep of adolescents aged 13 to 18 over a period of 4 weeks before a SA compared to a non-SA group, then to analyze the association between sleep, support social and well-being based on information from validated questionnaires. In 2015, 250 adolescents were included, 55 were recruited the day after a SA in French hospitals (before SA evaluations were retrospective). Logistic regression analyzes showed that during school days, bedtime was equivalent in both groups, but sleep onset latency was significantly longer in SA (86 min vs. 52 min, p = 0.016), and wake-up time was earlier (6 h 22 vs. 6 h 47, p = 0.002), resulting in a shorter total sleep time of 44 min (OR = 0.76, CI 95% [0.61-0.93]) the month preceding SA. Adolescents with longer sleep time performed better on perceived psychological well-being (p = 0.005), relationship with parents (p = 0.011) and school environment (p < 0.001). Results indicate a significant change in the quantity and quality of adolescents' subjective sleep in the 4 weeks preceding SA requiring objective measures to study the predictive properties of sleep in SA.
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Affiliation(s)
- Julie Rolling
- Department of Child and Adolescent Psychiatry, Strasbourg University Hospitals, 1 Porte de l'Hôpital, BP 426, 67091, Strasbourg Cedex, Strasbourg, France.
- Regional Center for Psychotraumatism Great East, Strasbourg University Hospital, Strasbourg, France.
- CNRS UPR 3212, Institute for Cellular and Integrative Neurosciences, University of Strasbourg, Strasbourg, France.
- Sleep Disorders Center, International Research Center for ChronoSomnology, Strasbourg University Hospitals, Strasbourg, France.
| | - Fabienne Ligier
- University Center for Child and Adolescent Psychiatry, Nancy Psychotherapeutic Center, University of Lorraine, Nancy, France
- EA4360 APEMAC, MICS, University of Lorraine, Nancy, France
| | - Juliette Rabot
- Department of Child and Adolescent Psychiatry, Strasbourg University Hospitals, 1 Porte de l'Hôpital, BP 426, 67091, Strasbourg Cedex, Strasbourg, France
- CNRS UPR 3212, Institute for Cellular and Integrative Neurosciences, University of Strasbourg, Strasbourg, France
| | - Patrice Bourgin
- CNRS UPR 3212, Institute for Cellular and Integrative Neurosciences, University of Strasbourg, Strasbourg, France
- Sleep Disorders Center, International Research Center for ChronoSomnology, Strasbourg University Hospitals, Strasbourg, France
| | - Eve Reynaud
- CNRS UPR 3212, Institute for Cellular and Integrative Neurosciences, University of Strasbourg, Strasbourg, France
- Centre de Recherche en Neurosciences de Lyon CRNL U1028, UMR5292, Université Claude Bernard Lyon 1, CNRS, INSERM, Forgetting, Bron, France
| | - Carmen M Schroder
- Department of Child and Adolescent Psychiatry, Strasbourg University Hospitals, 1 Porte de l'Hôpital, BP 426, 67091, Strasbourg Cedex, Strasbourg, France
- CNRS UPR 3212, Institute for Cellular and Integrative Neurosciences, University of Strasbourg, Strasbourg, France
- Sleep Disorders Center, International Research Center for ChronoSomnology, Strasbourg University Hospitals, Strasbourg, France
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27
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Borisenkov MF, Dorogina OI, Popov SV, Smirnov VV, Pecherkina AA, Symaniuk EE. The Positive Association between Melatonin-Containing Food Consumption and Older Adult Life Satisfaction, Psychoemotional State, and Cognitive Function. Nutrients 2024; 16:1064. [PMID: 38613097 PMCID: PMC11013436 DOI: 10.3390/nu16071064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 03/30/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
The purpose of this study was to test the hypothesis that melatonin-containing food (FMT) consumption is associated with a better sleep schedule and cognitive and psychoemotional state in older adults. A cross-sectional study of 557 (79% females) older adults living in the community with a mean age of 68.9 ± 7.7, ranging from 50 to 90 years, was conducted. The study, conducted in May and September 2023 using a face-to-face interview, collected personal data and assessed FMT intake during the day (FMTday) and for dinner (FMTdinner), life satisfaction, positive and negative affect, depression severity, cognitive functions, and sleep characteristics. Multiple regression and logistic regression analysis, adjusted for co-factors, were used to assess the association between the studied indicators. Multiple regression analysis showed that older adults with higher FMT consumption are more satisfied with life (FMTdinner: β = 0.107; ∆R2 = 0.011; p = 0.020), have a lower level of depression (FMTday: β = -0.124; ∆R2 = 0.015; p = 0.003), and higher scores in positive affect (FMTday: β = 0.169; ∆R2 = 0.016; p = 0.007; FMTdinner: β = 0.136; ∆R2 = 0.019; p = 0.003). Logistic regression analysis showed that older adults with higher FMT consumption are less likely to have depression (FMTday: OR, 0.614; 95% CI, 0.436-0.864; p = 0.005; FMTdinner: OR, 0.671; 95% CI, 0.476-0.945; p = 0.023), and they perform better on logical thinking tests (FMTday: OR, 2.066; 95% CI, 1.131-2.204; p = 0.013; FMTdinner: OR, 1.887; 95% CI, 1.183-2.138; p = 0.033). A greater life satisfaction as well as a decrease in the cognitive impairment and psychoemotional state of older adults is associated with a higher consumption of melatonin-containing foods.
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Affiliation(s)
- Mikhail F. Borisenkov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Federal Research Centre Komi Science Centre, Urals Branch of the Russian Academy of Sciences, 50 Pervomaiskaya Str., 167982 Syktyvkar, Russia; (S.V.P.); (V.V.S.)
| | - Olga I. Dorogina
- Ural Institute of Humanities, Ural Federal University, 51 Lenina Str., 620000 Yekaterinburg, Russia; (A.A.P.); (E.E.S.)
| | - Sergey V. Popov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Federal Research Centre Komi Science Centre, Urals Branch of the Russian Academy of Sciences, 50 Pervomaiskaya Str., 167982 Syktyvkar, Russia; (S.V.P.); (V.V.S.)
| | - Vasily V. Smirnov
- Department of Molecular Immunology and Biotechnology, Institute of Physiology of Federal Research Centre Komi Science Centre, Urals Branch of the Russian Academy of Sciences, 50 Pervomaiskaya Str., 167982 Syktyvkar, Russia; (S.V.P.); (V.V.S.)
| | - Anna A. Pecherkina
- Ural Institute of Humanities, Ural Federal University, 51 Lenina Str., 620000 Yekaterinburg, Russia; (A.A.P.); (E.E.S.)
| | - Elvira E. Symaniuk
- Ural Institute of Humanities, Ural Federal University, 51 Lenina Str., 620000 Yekaterinburg, Russia; (A.A.P.); (E.E.S.)
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28
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Yan X, Han F, Wang H, Li Z, Kawachi I, Li X. Years of life lost due to insufficient sleep and associated economic burden in China from 2010-18. J Glob Health 2024; 14:04076. [PMID: 38574358 PMCID: PMC10994670 DOI: 10.7189/jogh.14.04076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
Background Research on the health and economic costs due to insufficient sleep remains scant in developing countries. In this study we aimed to estimate the years of life lost (YLLs) due to short sleep and quantify its economic burden in China. Methods We estimated both individual and aggregate YLLs due to short sleep (ie, ≤6 hours) among Chinese adults aged 20 years or older by sex and five-year age groups in 2010, 2014, and 2018. YLL estimates were derived from 1) the prevalence of short sleep using three survey waves of the China Family Panel Studies, 2) relative mortality risks from meta-analyses, and 3) life tables in China. YLL was the difference between the estimated life expectancy of an individual in the short sleep category vs in the recommended sleep category. We estimated the economic cost using the human capital approach. Results The sample sizes of the three survey waves were 31 393, 31 207, and 28 618. Younger age groups and men had more YLLs due to short sleep compared to their counterparts. For individuals aged 20-24, men had an average YLL of nearly 0.95, in contrast to the approximate 0.75 in women across the observed years of 2010, 2014, and 2018. The trend in individual YLLs remained consistent over these years. In aggregate, China experienced a rise from 66.75 million YLLs in 2010 to 95.29 million YLLs in 2014, and to 115.05 million YLLs in 2018. Compared to 2010 (USD 191.83 billion), the associated economic cost in 2014 increased to USD 422.24 billion, and the cost in 2018 more than tripled (USD 628.15 billion). The percentage of cost to Chinese gross domestic product in corresponding years was 3.23, 4.09, and 4.62%. Conclusions Insufficient sleep is associated with substantial YLLs in China, potentially impacting the population's overall life expectancy. The escalating economic toll attributed to short sleep underscores the urgent need for public health interventions to improve sleep health at the population level.
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Affiliation(s)
- Xumeng Yan
- Department of Sociology, Tsinghua University, Beijing, China
- Department of Community Health Sciences, University of California, Los Angeles, California, USA
| | - Fang Han
- Division of Sleep Medicine, Beijing University People’s Hospital, Beijing, China
| | - Haowei Wang
- Department of Sociology and Aging Studies Institute, Maxwell School of Citizenship and Public Affairs, Syracuse University, Syracuse, New York, USA
| | - Zhihui Li
- Vanke School of Public Health, Tsinghua University, Beijing, China
| | - Ichiro Kawachi
- Department of Social and Behavioural Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Xiaoyu Li
- Department of Sociology, Tsinghua University, Beijing, China
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29
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Fernandes GL, da Silva Vallim JR, D'Almeida V, Tufik S, Andersen ML. The effects of social jetlag and sleep variability on sleepiness in a population-based study: The mediating role of sleep debt. J Sleep Res 2024; 33:e14043. [PMID: 37691450 DOI: 10.1111/jsr.14043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/25/2023] [Accepted: 08/25/2023] [Indexed: 09/12/2023]
Abstract
Sleepiness is a multicausal condition, and previous research has highlighted associations between this symptom and the circadian timing system, specifically concerning social jetlag and sleep variability. Recent inquiries have shown that the effects of social jetlag on sleepiness can be confounded with the consequences of sleep debt. In light of the current evidence, we aimed to assess the effects of social jetlag and sleep variability on sleepiness and the potential mediating role of sleep debt. We used data from the EPISONO study, a cross-sectional population-based study with a sample size of 1042 participants, representative of the city of Sao Paulo, Brazil. Participants completed the UNIFESP Sleep Questionnaire (self-reported bedtime and get-up time) and the Epworth Sleepiness Scale (subjective daytime sleepiness). Subsequently, sleep-corrected mid-sleep time (chronotype), total sleep time, social jetlag (absolute difference between the mid-sleep time on workdays and mid-sleep time on free days), sleep variability (standard deviation of mid-sleep time), and sleep debt (difference between total sleep time on workdays and free days) were calculated. Generalised linear models were used to test whether social jetlag and sleep variability affected sleepiness. Mediation models were used to determine if any observed significant effects were mediated by sleep debt. The prevalence of social jetlag was 23% for >1 h and 12% for >2 h. The mean sleep variability was 41 ± 30 min. Social jetlag had a significant effect on the Epworth Sleepiness Scale scores. This association was no longer statistically significant after controlling for age, sex, body mass index, work schedule, and chronotype. A significant indirect effect of social jetlag on sleep debt and subsequently on the Epworth Sleepiness Scale scores was found. No effect of sleep variability on sleepiness could be identified. In conclusion, the association between social jetlag and sleepiness was mediated by sleep debt but was not independent of demographic, work, and chronotype variables. This study provides new evidence on the importance of circadian misalignment and sleep debt for sleep health on a population level.
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Affiliation(s)
| | | | - Vânia D'Almeida
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sergio Tufik
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Monica Levy Andersen
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, Brazil
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Perrar I, Alexy U, Nöthlings U. Cohort profile update-overview of over 35 years of research in the Dortmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study. Eur J Nutr 2024; 63:727-740. [PMID: 38151532 PMCID: PMC10948456 DOI: 10.1007/s00394-023-03290-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 11/28/2023] [Indexed: 12/29/2023]
Abstract
PURPOSE To provide an update on the cohort profile of the DOrtmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study, including objectives, study design, methods and description of the comprehensive data pool, as well as to summarize the most important research findings of recent years. METHODS In 1985, the open (dynamic) cohort started to collect information on diet, growth, development, and metabolism of healthy children and adolescents in Dortmund, Germany. Detailed data are collected annually during infancy, childhood, and adolescence of the participants, including a 3-day weighed dietary record, a 24-h urine sample, anthropometric and medical examinations as well as interviews on lifestyle. RESULTS Even if the basic examination modules have not changed since the start over 35 years ago, the DONALD study has been continuously further developed by introducing new modules. As such, participants are also invited for follow-up examinations during adulthood since 2005, including an additional fasting blood withdrawal. Overall, 2375 (♂: 1177; ♀: 1198) participants were recruited in the DONALD study between 1985 and 2022. Data from ~ 30,700 anthropometric measurements, ~ 19,200 dietary records, ~ 10,600 24-h urine and ~ 1300 blood samples are available from an observation period of over 35 years. CONCLUSION The DONALD study provides a large data pool for longitudinal studies on nutrition, growth, and health in childhood and adolescence, its impact on the development of diseases in early adult life as well as dietary intake trends over more than three decades.
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Affiliation(s)
- Ines Perrar
- Institute of Nutritional and Food Sciences-Nutritional Epidemiology, University of Bonn, Friedrich-Hirzebruch-Allee 7, 53115, Bonn, Germany
| | - Ute Alexy
- Institute of Nutritional and Food Sciences-Nutritional Epidemiology, University of Bonn, Friedrich-Hirzebruch-Allee 7, 53115, Bonn, Germany
| | - Ute Nöthlings
- Institute of Nutritional and Food Sciences-Nutritional Epidemiology, University of Bonn, Friedrich-Hirzebruch-Allee 7, 53115, Bonn, Germany.
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Minz S, Pati AK, Mohapatra M, Pati UC, Sahu P, Acharya PK, Kumari RB, Satpathy R. Patterns in behavioural sleep variables and social jetlag in elderly people of Western Odisha. Chronobiol Int 2024; 41:473-484. [PMID: 38353253 DOI: 10.1080/07420528.2024.2315216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 02/01/2024] [Indexed: 02/17/2024]
Abstract
In humans, sleep is an essential physiological process for life and survival. The main objective of the current study is to determine the behavioural sleep patterns and social jetlag in elderly adults. The second objective is to define the relationship among subjective sleep quality, mid-sleep timings, social jetlag, and sunlight exposure. We recruited 945 female and 1047 male participants aged ≥ 60 years from 65 rural villages in the Sambalpur district of Odisha, India. The Munich Chrono Type Questionnaire (MCTQ) is a self-reported questionnaire that measures a person's behavioral sleep variables, including social jetlag and chronotype, whereas the Pittsburgh Sleep Quality Index (PSQI) measures the subjective sleep quality of an individual. We employed MCTQ and PSQI to obtain behavioral sleep variables and subjective sleep quality in the recruited subjects. The behavioral sleep variables were compared using a paired t-test on both work and work-free days. In addition, the behavioral sleep variables as a function of gender were compared using an independent Student's t-test. In the current study, most of the elderly individuals reported both midpoint of sleep on workdays (MSW) and midpoint of sleep on work-free days (MSF) between 00:01-03:00. The averages of mid-sleep timings between workdays and work-free days were not statistically significant. Data on MSFsc (midpoint of sleep on work-free days sleep corrected) indicated that most elderly adults (99.6%) are morning type; they go to bed early and wake up early. The elderly participants from the rural population of Sambalpur district in western Odisha had the least social jetlag and exhibited good subjective sleep quality. It would be worthwhile to find out the determinants of these positive features apropos social jetlag and behavioural sleep patterns.
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Affiliation(s)
- Sarojini Minz
- Center of Excellence, Odisha Center for Geriatrics and Gerontology, Gangadhar Meher University, Sambalpur, India
| | - Atanu Kumar Pati
- Odisha State Higher Education Council, Government of Odisha, Bhubaneswar, India
- School of Comparative Indic Studies and Tribal Sciences, Kalinga Institute of Social Sciences, Bhubaneswar, India
| | - Monalisa Mohapatra
- Center of Excellence, Odisha Center for Geriatrics and Gerontology, Gangadhar Meher University, Sambalpur, India
- School of Chemistry, Gangadhar Meher University, Sambalpur, India
| | - Uma Charan Pati
- School of Economics, Gangadhar Meher University, Sambalpur, India
| | - Pritipadma Sahu
- Center of Excellence, Odisha Center for Geriatrics and Gerontology, Gangadhar Meher University, Sambalpur, India
| | - Pradosh Kumar Acharya
- Center of Excellence, Odisha Center for Geriatrics and Gerontology, Gangadhar Meher University, Sambalpur, India
- School of Botany, Gangadhar Meher University, Sambalpur, India
| | - Rupashree Brahma Kumari
- Center of Excellence, Odisha Center for Geriatrics and Gerontology, Gangadhar Meher University, Sambalpur, India
- School of Pshychology, Gangadhar Meher University, Sambalpur, India
| | - Raghunath Satpathy
- Center of Excellence, Odisha Center for Geriatrics and Gerontology, Gangadhar Meher University, Sambalpur, India
- School of Biotechnology, Gangadhar Meher University, Sambalpur, India
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Wong P, Meltzer LJ, Barker D, Honaker SM, Owens JA, Saletin JM, Seixas A, Wahlstrom KL, Wolfson AR, Carskadon MA. The associations between instructional approach, sleep characteristics and adolescent mental health: Lessons from the COVID-19 pandemic. Sleep Health 2024; 10:221-228. [PMID: 38262777 DOI: 10.1016/j.sleh.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 01/25/2024]
Abstract
OBJECTIVES To test whether adolescents' mental health during the COVID-19 pandemic is associated with the combination of their instructional approach(es) and their sleep patterns. DESIGN Cross-sectional. SETTING Adolescents were recruited through social media outlets in October and November 2020 to complete an online survey. PARTICIPANTS Participants were 4442 geographically and racially diverse, community-dwelling students (grades 6-12, 51% female, 36% non-White, 87% high schoolers). MEASUREMENTS Participants completed items from the PROMIS Pediatric Depressive Symptoms and Anxiety scales. Participants reported their instructional approach(es), bedtimes, and wake times for each day in the past week. Participants were categorized into five combined instructional approach groups. Average sleep opportunity was calculated as the average time between bedtime and waketime. Social jetlag was calculated as the difference between the average sleep midpoint preceding non-scheduled and scheduled days. RESULTS Emotional distress was elevated in this sample, with a large proportion of adolescents reporting moderate-severe (T-score ≥ 65) levels of depressive symptoms (49%) and anxiety (28%). There were significant differences between instructional approach groups, such that adolescents attending all schooldays in-person reported the lowest depressive symptom and anxiety T-scores (P < .001, ηp2 = .012), but also the shortest sleep opportunity (P < .001, ηp2 = .077) and greatest social jetlag (P < .001, ηp2 = .037) of all groups. Adolescents attending school in person, with sufficient sleep opportunity (≥8-9 hours/night) and limited social jetlag (<2 hours) had significantly lower depressive (ηp2 = .014) and anxiety (ηp2 = .008) T-scores than other adolescents. CONCLUSIONS Prioritizing in-person education and promoting healthy sleep patterns (more sleep opportunity, more consistent sleep schedules) may help bolster adolescent mental health.
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Affiliation(s)
- Patricia Wong
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University/E. P. Bradley Hospital, Sleep for Science Research Lab, Providence, Rhode Island.
| | - Lisa J Meltzer
- Division of Pediatric Behavioral Health, Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - David Barker
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, Rhode Island
| | - Sarah M Honaker
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Judith A Owens
- Boston Children's Hospital, Harvard Medical School Division of Sleep Medicine, Boston, Massachusetts
| | - Jared M Saletin
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University/E. P. Bradley Hospital, Sleep for Science Research Lab, Providence, Rhode Island
| | - Azizi Seixas
- Department of Informatics and Health Data Science, University of Miami Miller School of Medicine, Miami, Florida
| | - Kyla L Wahlstrom
- Department of Organizational Leadership, Policy and Development, College of Education and Human Development, University of Minnesota, Minneapolis, Minnesota
| | - Amy R Wolfson
- Department of Psychology, Loyola University Maryland, Baltimore, Maryland
| | - Mary A Carskadon
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University/E. P. Bradley Hospital, Sleep for Science Research Lab, Providence, Rhode Island
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Dial MB, Malek EM, Cooper AR, Neblina GA, Vasileva NI, Hines DJ, McGinnis GR. Social jet lag impairs exercise volume and attenuates physiological and metabolic adaptations to voluntary exercise training. J Appl Physiol (1985) 2024; 136:996-1006. [PMID: 38450426 PMCID: PMC11305643 DOI: 10.1152/japplphysiol.00632.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/31/2024] [Accepted: 02/26/2024] [Indexed: 03/08/2024] Open
Abstract
Social jet lag (SJL) is a misalignment between sleep and wake times on workdays and free days. SJL leads to chronic circadian rhythm disruption and may affect nearly 70% of the general population, leading to increased risk for cardiometabolic diseases. This study investigated the effects of SJL on metabolic health, exercise performance, and exercise-induced skeletal muscle adaptations in mice. Ten-week-old C57BL/6J mice (n = 40) were allocated to four groups: control sedentary (CON-SED), control exercise (CON-EX), social jet lag sedentary (SJL-SED), and social jet lag exercise (SJL-EX). CON mice were housed under a 12:12-h light-dark cycle. SJL was simulated by implementing a 4-h phase delay for 3 days to simulate "weekends," followed by a 4-h phase advance back to "weekdays," for 6 wk. EX mice had free access to a running wheel. Graded exercise tests (GXTs) and glucose tolerance tests (GTTs) were performed at baseline and after intervention to monitor the effects of exercise and social jet lag on cardiorespiratory and metabolic health, respectively. SJL led to alterations in activity and running patterns and clock gene expression in skeletal muscle and decreased average running distance (P < 0.05). SJL-SED mice gained significantly more weight compared with CON-SED and SJL-EX mice (P < 0.01). SJL impaired fasting blood glucose and glucose tolerance compared with CON mice (P < 0.05), which was partially restored by exercise in SJL-EX mice. SJL also blunted improvements in exercise performance and mitochondrial content in the quadriceps. These data suggest that SJL blunted some cardiometabolic adaptations to exercise and that proper circadian hygiene is necessary for maintaining health and performance.NEW & NOTEWORTHY In mice, disrupting circadian rhythms with social jet lag for 6 wk caused significant weight gain, higher fasting blood glucose, and impaired glucose tolerance compared with control. Voluntary exercise in mice experiencing social jet lag prevented weight gain, though the mice still experienced increased fasting blood glucose and impaired exercise performance compared with trained mice not experiencing social jet lag. Social jet lag seems to be a potent circadian rhythm disruptor that impacts exercise-induced training adaptations.
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Affiliation(s)
- Michael B Dial
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, Nevada, United States
| | - Elias M Malek
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, Nevada, United States
| | - Austin R Cooper
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, Nevada, United States
| | - Greco A Neblina
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, Nevada, United States
| | - Nikoleta I Vasileva
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, Nevada, United States
| | - Dustin J Hines
- Department of Psychology, Psychological and Brain Sciences and Interdisciplinary Neuroscience Programs, University of Nevada, Las Vegas, Nevada, United States
| | - Graham R McGinnis
- Department of Kinesiology and Nutrition Sciences, School of Integrated Health Sciences, University of Nevada, Las Vegas, Nevada, United States
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Bouman EJ, Mackenbach JD, Twisk JWR, Raimondo L, Beulens JWJ, Elders PJM, Rutters F. Is the association between social jetlag and BMI mediated by lifestyle? A cross-sectional survey study in the Dutch general population. Prev Med 2024; 181:107908. [PMID: 38382765 DOI: 10.1016/j.ypmed.2024.107908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/16/2024] [Accepted: 02/17/2024] [Indexed: 02/23/2024]
Abstract
OBJECTIVE Social jetlag is a discordance between the social and biological rhythm and is associated with higher HbA1c, higher BMI, and higher odds of obesity. The pathways that could explain these associations are still debated. This study aims to assess the mediating role of several lifestyle factors in the cross-sectional association between social jetlag and BMI. METHODS We used cross-sectional data from 1784 adults from urban areas in the Netherlands, collected in 2019. Social jetlag (difference in midpoint of sleep between week and weekend nights) was categorized as low(<1 h), moderate(1-2h), and high(>2 h). BMI(kg/m2) was calculated from self-reported height and weight. The association between social jetlag and BMI was assessed using linear regression, adjusted for sex, age, education, and sleep duration and stratified for the effect modifier stress (high vs. low). Mediation analysis was performed for self-reported smoking, physical activity, alcohol consumption, and adherence to a healthy diet. RESULTS High social jetlag was associated with higher BMI (0.69 kg/m2,95%CI 0.05;1.33). This association was stronger in people with high stress (0.93 kg/m2,95%CI 0.09;1.76). Social jetlag was also associated with higher odds of smoking, lower physical activity, higher alcohol consumption, and lower healthy diet adherence. In people with high stress, these factors mediated 10-15% of the association between social jetlag and BMI. CONCLUSIONS Social jetlag is associated with higher BMI and this association is stronger in people with high stress. In people with high stress, healthy diet adherence mediated 12% of this association. Other pathways involved in this association should be further investigated.
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Affiliation(s)
- Emma J Bouman
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Meibergdreef 9, Amsterdam, Netherlands; Amsterdam Public Health, Health Behaviors & Chronic Diseases, Amsterdam, the Netherlands.
| | - Joreintje D Mackenbach
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Meibergdreef 9, Amsterdam, Netherlands; Amsterdam Public Health, Health Behaviors & Chronic Diseases, Amsterdam, the Netherlands
| | - Jos W R Twisk
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Meibergdreef 9, Amsterdam, Netherlands
| | - Laura Raimondo
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Meibergdreef 9, Amsterdam, Netherlands
| | - Joline W J Beulens
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Meibergdreef 9, Amsterdam, Netherlands; Amsterdam Public Health, Health Behaviors & Chronic Diseases, Amsterdam, the Netherlands; Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, the Netherlands
| | - Petra J M Elders
- Amsterdam Public Health, Health Behaviors & Chronic Diseases, Amsterdam, the Netherlands; Amsterdam UMC location Vrije Universiteit Amsterdam, General Practice, Meibergdreef 9, Amsterdam, Netherlands
| | - Femke Rutters
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Meibergdreef 9, Amsterdam, Netherlands; Amsterdam Public Health, Health Behaviors & Chronic Diseases, Amsterdam, the Netherlands
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Peters B, Vahlhaus J, Pivovarova-Ramich O. Meal timing and its role in obesity and associated diseases. Front Endocrinol (Lausanne) 2024; 15:1359772. [PMID: 38586455 PMCID: PMC10995378 DOI: 10.3389/fendo.2024.1359772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/01/2024] [Indexed: 04/09/2024] Open
Abstract
Meal timing emerges as a crucial factor influencing metabolic health that can be explained by the tight interaction between the endogenous circadian clock and metabolic homeostasis. Mistimed food intake, such as delayed or nighttime consumption, leads to desynchronization of the internal circadian clock and is associated with an increased risk for obesity and associated metabolic disturbances such as type 2 diabetes and cardiovascular diseases. Conversely, meal timing aligned with cellular rhythms can optimize the performance of tissues and organs. In this review, we provide an overview of the metabolic effects of meal timing and discuss the underlying mechanisms. Additionally, we explore factors influencing meal timing, including internal determinants such as chronotype and genetics, as well as external influences like social factors, cultural aspects, and work schedules. This review could contribute to defining meal-timing-based recommendations for public health initiatives and developing guidelines for effective lifestyle modifications targeting the prevention and treatment of obesity and associated metabolic diseases. Furthermore, it sheds light on crucial factors that must be considered in the design of future food timing intervention trials.
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Affiliation(s)
- Beeke Peters
- Research Group Molecular Nutritional Medicine and Department of Human Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- German Center for Diabetes Research (DZD), München, Germany
| | - Janna Vahlhaus
- Research Group Molecular Nutritional Medicine and Department of Human Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- University of Lübeck, Lübeck, Germany
| | - Olga Pivovarova-Ramich
- Research Group Molecular Nutritional Medicine and Department of Human Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- University of Lübeck, Lübeck, Germany
- Department of Endocrinology and Metabolism, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, and Humboldt-Universität zu Berlin, Berlin, Germany
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Abstract
The timing of life on Earth is remarkable: between individuals of the same species, a highly similar temporal pattern is observed, with shared periods of activity and inactivity each day. At the individual level, this means that over the course of a single day, a person alternates between two states. They are either upright, active, and communicative or they lie down in a state of (un)consciousness called sleep where even the characteristic of neuronal signals in the brain shows distinctive properties. The circadian clock governs both of these time stamps-activity and (apparent) inactivity-making them come and go consistently at the same approximate time each day. This behavior thus represents the meeting of two pervasive systems: the circadian clock and metabolism. In this article, we will describe what is known about how the circadian clock anticipates daily changes in oxygen usage, how circadian clock regulation may relate to normal physiology, and to hypoxia and ischemia that can result from pathologies such as myocardial infarction and stroke.
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Affiliation(s)
- Francesca Sartor
- Institute of Medical Psychology, Medical Faculty, LMU Munich, Germany (F.S., B.F.-B., M.M.)
| | - Borja Ferrero-Bordera
- Institute of Medical Psychology, Medical Faculty, LMU Munich, Germany (F.S., B.F.-B., M.M.)
| | - Jeffrey Haspel
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO (J.H.)
| | - Markus Sperandio
- Institute for Cardiovascular Physiology and Pathophysiology, Walter Brendel Center for Experimental Medicine, and the Biomedical Center (BMC), Medical Faculty, LMU Munich, Germany (M.S.)
| | - Paul M Holloway
- Radcliffe Department of Medicine, University of Oxford, United Kingdom (P.M.H.)
| | - Martha Merrow
- Institute of Medical Psychology, Medical Faculty, LMU Munich, Germany (F.S., B.F.-B., M.M.)
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Jeppe K, Ftouni S, Nijagal B, Grant LK, Lockley SW, Rajaratnam SMW, Phillips AJK, McConville MJ, Tull D, Anderson C. Accurate detection of acute sleep deprivation using a metabolomic biomarker-A machine learning approach. SCIENCE ADVANCES 2024; 10:eadj6834. [PMID: 38457492 PMCID: PMC11094653 DOI: 10.1126/sciadv.adj6834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 02/02/2024] [Indexed: 03/10/2024]
Abstract
Sleep deprivation enhances risk for serious injury and fatality on the roads and in workplaces. To facilitate future management of these risks through advanced detection, we developed and validated a metabolomic biomarker of sleep deprivation in healthy, young participants, across three experiments. Bi-hourly plasma samples from 2 × 40-hour extended wake protocols (for train/test models) and 1 × 40-hour protocol with an 8-hour overnight sleep interval were analyzed by untargeted liquid chromatography-mass spectrometry. Using a knowledge-based machine learning approach, five consistently important variables were used to build predictive models. Sleep deprivation (24 to 38 hours awake) was predicted accurately in classification models [versus well-rested (0 to 16 hours)] (accuracy = 94.7%/AUC 99.2%, 79.3%/AUC 89.1%) and to a lesser extent in regression (R2 = 86.1 and 47.8%) models for within- and between-participant models, respectively. Metabolites were identified for replicability/future deployment. This approach for detecting acute sleep deprivation offers potential to reduce accidents through "fitness for duty" or "post-accident analysis" assessments.
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Affiliation(s)
- Katherine Jeppe
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, Australia
| | - Suzanne Ftouni
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, Australia
| | - Brunda Nijagal
- Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Leilah K. Grant
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, Australia
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Steven W. Lockley
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, Australia
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Shantha M. W. Rajaratnam
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, Australia
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA
| | - Andrew J. K. Phillips
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Malcolm J. McConville
- Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Dedreia Tull
- Metabolomics Australia, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Clare Anderson
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Cooperative Research Centre for Alertness, Safety and Productivity, Melbourne, Australia
- Centre for Human Brain Health, School of Psychology, University of Birmingham, Edgbaston, UK
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de Sá Couto-Pereira N, Nexha A, Boff Borges R, Amando GR, Francisco AP, Amaral FG, Frey BN, Calcagnotto ME, Hidalgo MP, Pilz LK. Routine regularity during a global pandemic: Impact on mental health outcomes and influence of chronotype. Chronobiol Int 2024; 41:456-472. [PMID: 38380627 DOI: 10.1080/07420528.2024.2314216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/26/2024] [Indexed: 02/22/2024]
Abstract
Among the public health recommendations for supporting mental health during the COVID-19 pandemic, many strategies had an impact on biological rhythms, like sleep hygiene, physical exercise and healthy eating habits. Considering the known relationship between circadian organization and mental health, our aim was to test the association between behavioral regularity and mental health, and its interaction with chronotype, in a large sample surveyed in Brazil. We collected longitudinal data using online questionnaires that assessed sociodemographic characteristics, behavioral routines, mental health (PHQ-9, GAD-7, WHO-5 scales), and chronotype estimation based on midpoint of sleep on free days - MSF (μMCTQ), in a sample of 1390 participants (81% females). We computed a Routine Regularity Score (RRS) that reflects regularity across four behaviors: sleep, eating, working, exercising. There was a strong negative association between RRS and the severity of anxiety and depressive symptoms (GAD-7 and PHQ-9 scores), which was weaker among participants with late MSF, and a strong positive association with well-being (WHO-5 scores). RRS was a mediator of the MSF-mental health association and a predictor of mental health states. This study provides empirical evidence that maintaining behavioral routines during times of hardship may serve as tools to alleviate the negative impact on mental health.
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Affiliation(s)
- Natividade de Sá Couto-Pereira
- Neurophysiology and Neurochemistry of Neuronal Excitability and Synaptic Plasticity Laboratory (NNNESP Lab.), Department of Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Neuroscience, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Psychological Neuroscience Laboratory, Psychology Research Centre, School of Psychology, University of Minho, Braga, Portugal
| | - Adile Nexha
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada
| | - Rogério Boff Borges
- Unidade de Bioestatística - Diretoria de Pesquisa (DIPE), Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Department of Statistics, Institute of Mathematics and Statistics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Guilherme Rodriguez Amando
- Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre/Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ana Paula Francisco
- Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre/Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda G Amaral
- Laboratório de Neurobiologia da Pineal, Department of Physiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Benicio N Frey
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada
- Mood Disorders Program, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada
- Women's Health Concerns Clinic, St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Maria Elisa Calcagnotto
- Neurophysiology and Neurochemistry of Neuronal Excitability and Synaptic Plasticity Laboratory (NNNESP Lab.), Department of Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Neuroscience, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Biological Sciences: Biochemistry, Department of Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Maria Paz Hidalgo
- Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre/Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Luísa K Pilz
- Laboratório de Cronobiologia e Sono, Hospital de Clínicas de Porto Alegre/Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Graduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Department of Anesthesiology and Intensive Care Medicine CCM / CVK, Charité - Universitätsmedizin Berlin, Berlin, Germany
- ECRC Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Arab A, Karimi E, Garaulet M, Scheer FAJL. Social jetlag and obesity: A systematic review and meta-analysis. Obes Rev 2024; 25:e13664. [PMID: 38072635 DOI: 10.1111/obr.13664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 10/03/2023] [Accepted: 10/07/2023] [Indexed: 02/28/2024]
Abstract
Social jetlag, the weekly variation in sleep timing, is proposed to contribute to increased obesity risk, potentially because of the misalignment of behavioral cycles relative to the endogenous circadian timing system. This systematic review and meta-analysis aim to determine the association between social jetlag and adiposity-related measures using observational studies. We reviewed 477 references, of which 43 studies met inclusion criteria with a total sample size of 231,648. There was a positive association between social jetlag and body mass index (correlation coefficient [r]: 0.12; 95%CI, 0.07, 0.17; P < 0.001; I2 = 94.99%), fat mass (r: 0.10; 95%CI, 0.05, 0.15; P < 0.001; I2 = 0.00%), fat mass index (fat mass divided by height in meter squared, β: 0.14 kg/m2 ; 95%CI, 0.05, 0.23; P < 0.001; I2 = 56.50%), percent of body fat (r: 0.37; 95%CI, 0.33, 0.41; P < 0.001; I2 = 96.17%), waist circumference (r: 0.15; 95%CI, 0.06, 0.24; P = 0.001; I2 = 90.83%), and the risk of having overweight/obesity (odds ratio: 1.20; 95%CI, 1.02, 1.140; P = 0.039; I2 = 98.25%). Social jetlag is positively and consistently associated with multiple obesity-related anthropometric measures. Further studies are needed to test causality, underlying mechanisms, and whether obesity interventions based on increasing regularity of the sleep/wake cycle can aid in the battle against the obesity pandemic.
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Affiliation(s)
- Arman Arab
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Elham Karimi
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
- Research Development Center, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Marta Garaulet
- Department of Physiology, Regional Campus of International Excellence, University of Murcia, Murcia, Spain
- Biomedical Research Institute of Murcia, IMIB-Arrixaca-UMU, University Clinical Hospital, Murcia, Spain
| | - Frank A J L Scheer
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA
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Wallace DA, Qiu X, Schwartz J, Huang T, Scheer FAJL, Redline S, Sofer T. Light exposure during sleep is bidirectionally associated with irregular sleep timing: The multi-ethnic study of atherosclerosis (MESA). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 344:123258. [PMID: 38159634 PMCID: PMC10947994 DOI: 10.1016/j.envpol.2023.123258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/08/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Exposure to light at night (LAN) may influence sleep timing and regularity. Here, we test whether greater light exposure during sleep (LEDS) is bidirectionally associated with greater irregularity in sleep onset timing in a large cohort of older adults in cross-sectional and short-term longitudinal (days) analyses. Light exposure and activity patterns, measured via wrist-worn actigraphy (ActiWatch Spectrum), were analyzed in 1933 participants with 6+ valid days of data in the Multi-Ethnic Study of Atherosclerosis (MESA) Exam 5 Sleep Study. Summary measures of LEDS averaged across nights were evaluated in linear and logistic regression analyses to test the association with standard deviation (SD) in sleep onset timing (continuous variable) and irregular sleep onset timing (SD > 90 min, binary). Night-to-night associations between LEDS and absolute differences in nightly sleep onset timing were also evaluated with distributed lag non-linear models and mixed models. In between-individual linear and logistic models adjusted for demographic, health, and seasonal factors, every 5-lux unit increase in LEDS was associated with a 7.8-min increase in sleep onset SD (β = 0.13 h, 95%CI:0.09-0.17) and 32% greater odds (OR = 1.32, 95%CI:1.17-1.50) of irregular sleep onset. In within-individual night-to-night mixed model analyses, every 5-lux unit increase in LEDS the night prior was associated with a 2.2-min greater deviation of sleep onset the next night (β = 0.036 h, p < 0.05). Conversely, every 1-h increase in sleep deviation was associated with a 0.35-lux increase in future LEDS (β = 0.348 lux, p < 0.05). LEDS was associated with greater irregularity in sleep onset in between-individual analyses and subsequent deviation in sleep timing in within-individual analyses, supporting a role for LEDS in irregular sleep onset timing. Greater deviation in sleep onset was also associated with greater future LEDS, suggesting a bidirectional relationship. Maintaining a dark sleeping environment and preventing LEDS may promote sleep regularity and following a regular sleep schedule may limit LEDS.
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Affiliation(s)
- Danielle A Wallace
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA; Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston ,MA, USA.
| | - Xinye Qiu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Joel Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Tianyi Huang
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital,Boston, MA, USA
| | - Frank A J L Scheer
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA; Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston ,MA, USA; Broad Institute of Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, USA
| | - Susan Redline
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA; Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston ,MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Tamar Sofer
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, USA; Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston ,MA, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
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Mendes SG, Teixeira GP, Balieiro LCT, Fahmy WM, Gontijo CA, Maia YCDP, Crispim CA. Is the Caloric Midpoint Associated with Food Cravings and Food Intake in Pregnant Women? JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2024; 43:236-243. [PMID: 37677101 DOI: 10.1080/27697061.2023.2255244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 07/24/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023]
Abstract
Objective: The field of chrononutrition suggests that mealtime can influence food intake. Previous studies have linked the caloric midpoint - defined as the time at which 50% of the daily energy is consumed - with different aspects of food consumption. However, its relationship with food craving remains unexplored. This cross-sectional study aimed to investigate the association between caloric midpoint, food craving, and food consumption in pregnant women.Methods: The study comprised 233 pregnant women classified as early eaters (caloric midpoint ≤ 1:00pm) and late eaters (caloric midpoint >1:00pm). Food craving were assessed using Food Craving Trait and State Questionnaires. Energy and nutrient intake, as well as mealtimes, were assessed using a 24-h food recall.Results: No association between caloric midpoint and food craving was found. However, late eaters consumed more calories (2039.47 kcal vs 1843.44 kcal; p < 0.001), carbohydrates (255.06 g vs 211.12 g; p = 0.002), total fat (73.1 g vs 64.8 g; p = 0.003), monounsaturated fat (21.33 mg vs 18.59 mg; p = 0.002) and saturated fat (24.37 mg vs 22.21 mh; p = 0.01) and had higher consumption of calories and macronutrients in the first (calories: 275.63 vs 213.41, p = 0.007; carbohydrate: 170.42 vs 142.54, p = 0.01; total fat: 56.49 vs 50.17, p = 0.04) and second (calories: 213.21 vs 151.59, p = 0.04; carbohydrate: 130.44 vs 96.6, p = 0.04; protein: 15.17 vs 13.71, p = 0.03) afternoon snack, dinner (calories: 576.89 vs 412.4, p < 0.001; carbohydrate: 230.76 vs 169.45, p < 0.001; protein: 80.48 vs 68.9, p = 0.02; total fat: 212.77 vs 147.12, p < 0.001) and late-night snack (calories: 135.75 vs 68.3, p = 0.04; total fat: 13.23 vs 22.45, p = 0.04) than early eaters.Conclusion: Pregnant women who concentrate their meals at later times consumed more calories, macro and micronutrients throughout the day and in the night meals when compared to early eaters.
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Affiliation(s)
- Samira Gonçalves Mendes
- Chrononutrition Research Group, School of Medicine, Federal University of Uberlândia, Uberlândia, Brazil
| | - Gabriela Pereira Teixeira
- Chrononutrition Research Group, School of Medicine, Federal University of Uberlândia, Uberlândia, Brazil
| | | | | | - Cristiana Araújo Gontijo
- Molecular Biology and Nutrition Research Group, School of Medicine, Federal University of Uberlandia, Uberlandia, Brazil
| | - Yara Cristina de Paiva Maia
- Molecular Biology and Nutrition Research Group, School of Medicine, Federal University of Uberlandia, Uberlandia, Brazil
| | - Cibele Aparecida Crispim
- Chrononutrition Research Group, School of Medicine, Federal University of Uberlândia, Uberlândia, Brazil
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Wu CC, Yang PL, Kao LT, Liu YC, Zheng CM, Chu P, Lu K, Chu CM, Chang YT. Sleep Duration and Kidney Function - Does Weekend Sleep Matter? Nat Sci Sleep 2024; 16:85-97. [PMID: 38333420 PMCID: PMC10850764 DOI: 10.2147/nss.s427687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 12/21/2023] [Indexed: 02/10/2024] Open
Abstract
Objective Weekend sleep duration is linked to health issues, including mortality. However, how weekend sleep duration can impact chronic kidney disease (CKD) still needs to be understood. Therefore, we aimed to analyze how weekend sleep duration is associated with kidney function. Methods This is a cross-sectional study. Data were obtained from the 2017-2018 National Health and Nutrition Examination Survey. We included 5362 study participants and categorized them into nine subgroups by sleep duration (short: ≤6 hours, normal: 6-9 hours, and long: ≥9 hours) on weekdays and weekends and analyzed for the respective association with renal function using stratified multivariable linear regression. Results Weekend sleep duration for 9 hours or more was associated with decreasing estimated glomerular filtration rate (eGFR) levels by 2.8 to 6.4 mL/min/1.73 m2 among people with long to short weekday sleep duration compared with short weekday and weekend sleep durations (control group) after adjusting for demographic characteristics, body measurement, sleep quality, smoking, and comorbidities. The study population with short weekday sleep duration (sWK) and long weekend sleep duration (lWD) had the most significant decline in eGFR. For the study population with sWK, eGFR level significantly decreased by 1.1 mL/min/1.73 m2 as sleep duration on weekends increased by one hour. Conclusion The underlying mediators of lWD and CKD could be the dysregulation of human behaviors, metabolism, or biological functions. Longer weekend sleep duration was linked to a decrease in eGFR levels. It warrants further study to clarify the mediators.
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Affiliation(s)
- Chia-Chao Wu
- Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Pei-Lin Yang
- School of Nursing, National Defense Medical Center, Taipei City, Taiwan
| | - Li-Ting Kao
- School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
- Department of Pharmacy Practice, Tri-Service General Hospital, Taipei, Taiwan
| | - Yi-Chun Liu
- School of Public Health, National Defense Medical Center, Taipei City, Taiwan
- Institute of Medical Sciences, National Defense Medical Center, Taipei City, Taiwan
| | - Cai-Mei Zheng
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Pauling Chu
- Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Kuo‐Cheng Lu
- Division of Nephrology, Fu-Jen Catholic Hospital, Fu-Jen Catholic University, Taipei, Taiwan
| | - Chi-Ming Chu
- School of Public Health, National Defense Medical Center, Taipei City, Taiwan
- Department of Surgery, Songshan Branch of Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan
- Division of Biostatistics and Informatics, Department of Epidemiology, School of Public Health, National Defense Medical Center, Taipei, Taiwan
- Department of Public Health, China Medical University, Taichung City, Taiwan
| | - Yu-Tien Chang
- School of Public Health, National Defense Medical Center, Taipei City, Taiwan
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Lamunion SR, Brychta RJ, Saint-Maurice PF, Matthews CE, Chen KY. Does Wrist-Worn Accelerometer Wear Compliance Wane over a Free-Living Assessment Period? An NHANES Analysis. Med Sci Sports Exerc 2024; 56:209-220. [PMID: 37703285 PMCID: PMC10872893 DOI: 10.1249/mss.0000000000003301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
PURPOSE Accelerometers are used to objectively measure physical behaviors in free-living environments, typically for seven consecutive days or more. We examined whether participants experience "wear fatigue," a decline in wear time day over day, during typical assessment period acquired in a nationally representative sample of 6- to 80-yr-olds in the United States. METHODS Participants were instructed to wear an ActiGraph GT3X+ on their nondominant wrist continuously for seven consecutive days. Participants with seven complete days of recorded data, regardless of wear status, were included in the analyses ( N = 13,649). Wear was scored with the sleep, wake, and nonwear algorithm. RESULTS Participants averaged 1248 ± 3.6 min·d -1 (mean ± SE) of wear over the assessment, but wear time linearly decreased from day 1 (1295 ± 3.2 min) to day 7 (1170 ± 5.3 min), resulting in a wear fatigue of -18.1 ± 0.7 min·d -1 ( β ± SE). Wear fatigue did not differ by sex but varied by age-group-highest in adolescents (-26.8 ± 2.4 min·d -1 ) and lowest in older adults (-9.3 ± 0.9 min·d -1 ). Wear was lower in evening (1800-2359 h) and early morning (0000-0559 h) compared with the middle of the day and on weekend days compared with weekdays. We verified similar wear fatigue (-23.5 ± 0.7 min·d -1 ) in a separate sample ( N = 14,631) with hip-worn devices and different wear scoring. Applying minimum wear criteria of ≥10 h·d -1 for ≥4 d reduced wear fatigue to -5.3 and -18.7 min·d -1 for the wrist and hip, respectively. CONCLUSIONS Patterns of wear suggest noncompliance may disproportionately affect estimates of sleep and sedentary behavior, particularly for adolescents. Further study is needed to determine the effect of wear fatigue on longer assessments.
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Affiliation(s)
- Samuel R Lamunion
- Energy Metabolism Section, National Institute of Diabetes, Digestive and Kidney Diseases, Diabetes, Endocrinology, and Obesity Branch, National Institutes of Health (NIH), Bethesda, MD
| | - Robert J Brychta
- Energy Metabolism Section, National Institute of Diabetes, Digestive and Kidney Diseases, Diabetes, Endocrinology, and Obesity Branch, National Institutes of Health (NIH), Bethesda, MD
| | - Pedro F Saint-Maurice
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Charles E Matthews
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD
| | - Kong Y Chen
- Energy Metabolism Section, National Institute of Diabetes, Digestive and Kidney Diseases, Diabetes, Endocrinology, and Obesity Branch, National Institutes of Health (NIH), Bethesda, MD
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Jankovic N, Schmitting S, Stutz B, Krüger B, Buyken A, Alexy U. Alignment between timing of 'highest caloric intake' and chronotype in relation to body composition during adolescence: the DONALD Study. Eur J Nutr 2024; 63:253-265. [PMID: 37863858 PMCID: PMC10799146 DOI: 10.1007/s00394-023-03259-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 09/27/2023] [Indexed: 10/22/2023]
Abstract
PURPOSE Our aim was to assess alignment in timing of 'highest caloric intake' with individual chronotype and its association with body composition in adolescents. METHODS We used repeatedly collected data from n = 196 adolescents (age 9-16 years, providing N = 401 yearly questionnaires) of the DONALD open cohort study. Chronotype was assessed by the Munich Chronotype Questionnaire from which midpoint of sleep (MSFsc) was derived. A sex- and age-specific diet-chrono-alignment score (DCAS) was calculated as the difference in hours between the chronotype-specific median timing of highest caloric intake of the studied population and the individual timing of 'highest caloric intake' or vice versa. Repeated-measures regression models were applied to study cross-sectional and longitudinal associations between the DCAS and body composition, e.g., Fat Mass Index (FMI) or Fat Free Mass Index (FFMI). RESULTS DCAS ranged from -6:42 h to + 8:01 h and was not associated with body composition. Among adolescents with a later chronotype (N = 201) a 1 h increase in DCAS (later consumption of 'highest caloric intake' in comparison to the median intake of that group), increased FFMI by 1.92 kg/m2 (95% CI: 0.15, 3.69, p value = 0.04) over a median follow-up of 0.94 year. CONCLUSION Alignment of energy intake with individual chronotype appears beneficial for FFMI among those with a late chronotype.
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Affiliation(s)
- Nicole Jankovic
- Nutritional Epidemiology, Department of Nutrition and Food Sciences, DONALD Study, Rheinische Friedrich-Wilhelms-University Bonn, Heinstück 11, 44225, Dortmund, Germany.
| | - Sarah Schmitting
- Nutritional Epidemiology, Department of Nutrition and Food Sciences, DONALD Study, Rheinische Friedrich-Wilhelms-University Bonn, Heinstück 11, 44225, Dortmund, Germany
| | - Bianca Stutz
- Faculty of Natural Sciences, Institute of Nutrition, Consumption and Health, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Bettina Krüger
- Faculty of Natural Sciences, Institute of Nutrition, Consumption and Health, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Anette Buyken
- Faculty of Natural Sciences, Institute of Nutrition, Consumption and Health, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Ute Alexy
- Nutritional Epidemiology, Department of Nutrition and Food Sciences, DONALD Study, Rheinische Friedrich-Wilhelms-University Bonn, Heinstück 11, 44225, Dortmund, Germany
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Abdollahi AM, Li X, Merikanto I, Leppänen MH, Vepsäläinen H, Lehto R, Ray C, Erkkola M, Roos E. Comparison of actigraphy-measured and parent-reported sleep in association with weight status among preschool children. J Sleep Res 2024; 33:e13960. [PMID: 37282765 DOI: 10.1111/jsr.13960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 04/07/2023] [Accepted: 05/18/2023] [Indexed: 06/08/2023]
Abstract
This study compared weekday and weekend actigraphy-measured and parent-reported sleep in relation to weight status among preschool-aged children. Participants were 3-6 years old preschoolers from the cross-sectional DAGIS-study with sleep data for ≥2 weekday and ≥2 weekend nights. Parents-reported sleep onset and wake-up times were gathered alongside 24 h hip-worn actigraphy. An unsupervised Hidden-Markov Model algorithm provided actigraphy-measured night time sleep without the guidance of reported sleep times. Waist-to-height ratio and age-and-sex-specific body mass index characterised weight status. Comparison of methods were assessed with consistency in quintile divisions and Spearman correlations. Associations between sleep and weight status were assessed with adjusted regression models. Participants included 638 children (49% girls) with a mean ± SD age of 4.76 ± 0.89. On weekdays, 98%-99% of actigraphy-measured and parent-reported sleep estimates were classified in the same or adjacent quintile and were strongly correlated (rs = 0.79-0.85, p < 0.001). On weekends, 84%-98% of actigraphy-measured and parent-reported sleep estimates were respectively classified and correlations were moderate to strong (rs = 0.62-0.86, p < 0.001). Compared with actigraphy-measured sleep, parent-reported sleep had consistently earlier onset, later wake-up, and greater duration. Earlier actigraphy-measured weekday sleep onset and midpoint were associated with a higher body mass index (respective β-estimates: -0.63, p < 0.01 and -0.75, p < 0.01) and waist-to-height ratio (-0.004, p = 0.03 and -0.01, p = 0.02). Though the sleep estimation methods were consistent and correlated, actigraphy measures should be favoured as they are more objective and sensitive to identifying associations between sleep timing and weight status compared with parent reports.
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Affiliation(s)
- Anna M Abdollahi
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
| | - Xinyue Li
- School of Data Science, City University of Hong Kong, Hong Kong SAR, China
| | - Ilona Merikanto
- Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
- Orton Orthopaedics Hospital, Helsinki, Finland
| | - Marja H Leppänen
- Folkhälsan Research Center, Helsinki, Finland
- Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Henna Vepsäläinen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Reetta Lehto
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
| | - Carola Ray
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
| | - Maijaliisa Erkkola
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Eva Roos
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
- Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Food Studies, Nutrition and Dietetics, Uppsala University, Uppsala, Sweden
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Chen IY, Radom-Aizik S, Stehli A, Palmer JR, Lui KK, Dave A, Chappel-Farley MG, Vinces KG, Gealer D, Lim A, Mander BA, Benca RM, Neikrug AB. Cardiorespiratory fitness and circadian rhythms in adolescents: a pilot study. J Appl Physiol (1985) 2024; 136:372-384. [PMID: 38126092 PMCID: PMC11213564 DOI: 10.1152/japplphysiol.00291.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 11/07/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023] Open
Abstract
Although cardiorespiratory fitness (CRF), an important marker of youth health, is associated with earlier sleep/wake schedule, its relationship with circadian rhythms is unclear. This study examined the associations between CRF and rhythm variables in adolescents. Eighteen healthy adolescents (10 females and 8 males; Mage = 14.6 ± 2.3 yr) completed two study visits on weekdays bracketing an ambulatory assessment during summer vacation. Visit 1 included in-laboratory CRF assessment (peak V̇o2) using a ramp-type progressive cycle ergometry protocol and gas exchange measurement, which was followed by 7-14 days of actigraphy to assess sleep/wake patterns and 24-h activity rhythms. During Visit 2, chronotype, social jetlag (i.e., the difference in midsleep time between weekdays and weekends), and phase preference were assessed using a questionnaire, and hourly saliva samples were collected to determine the dim light melatonin onset (DLMO) phase. All analyses were adjusted for sex, pubertal status, and physical activity. Greater peak V̇o2 was associated with earlier sleep/wake times and circadian phase measures, including acrophase, UP time, DOWN time, last activity peak (LAP) time, and chronotype (all P < 0.05). Peak V̇o2 was negatively associated with social jetlag (P = 0.02). In addition, the mixed-model analysis revealed a significant interaction effect between peak V̇o2 and actigraphy-estimated hour-by-hour activity patterns (P < 0.001), with the strongest effects observed at around the time of waking (0600-1000). In healthy adolescents, better CRF was associated with an earlier circadian phase and increased activity levels notably during the morning. Future studies are needed to investigate the longitudinal effects of the interactions between CRF and advanced rhythms on health outcomes.NEW & NOTEWORTHY In healthy adolescents, better cardiorespiratory fitness, as assessed by the gold standard measure [laboratory-based assessment of peak oxygen consumption (V̇o2)], was associated with earlier circadian timing of sleep/wake patterns, rest-activity rhythms and chronotype, and less social jetlag. These findings highlight the close interrelationships between fitness and rhythms and raise the possibility that maintaining higher cardiorespiratory fitness levels alongside earlier sleep/wake schedule and activity rhythms may be important behavioral intervention targets to promote health in adolescents.
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Affiliation(s)
- Ivy Y Chen
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, California, United States
| | - Shlomit Radom-Aizik
- Pediatric Exercise and Genomics Research Center, University of California, Irvine, Irvine, California, United States
| | - Annamarie Stehli
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, California, United States
- Pediatric Exercise and Genomics Research Center, University of California, Irvine, Irvine, California, United States
| | - Jake R Palmer
- School of Psychology, Faculty of Science, University of Sydney, Sydney, New South Wales, Australia
- Brain and Mind Centre and Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Kitty K Lui
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, California, United States
| | - Abhishek Dave
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, California, United States
| | - Miranda G Chappel-Farley
- Center for the Neurobiology of Learning and Memory, University of California, Irvine, Irvine, California, United States
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, California, United States
| | - Karla G Vinces
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, California, United States
| | - Daniel Gealer
- Pediatric Exercise and Genomics Research Center, University of California, Irvine, Irvine, California, United States
| | - Alexandra Lim
- Pediatric Exercise and Genomics Research Center, University of California, Irvine, Irvine, California, United States
| | - Bryce A Mander
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, California, United States
- Center for the Neurobiology of Learning and Memory, University of California, Irvine, Irvine, California, United States
| | - Ruth M Benca
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, California, United States
| | - Ariel B Neikrug
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, California, United States
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Ciobanu D, Porojan M, Bala C, Zah AM, Oroian I, Roman G, Rusu A. Lifestyle factors, dietary patterns, and social determinants of social and eating jetlag: A cross-sectional survey. Chronobiol Int 2024; 41:248-258. [PMID: 38153101 DOI: 10.1080/07420528.2023.2298700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/17/2023] [Indexed: 12/29/2023]
Abstract
Social jetlag (SJL) and, more recently, eating jetlag have been linked with an increased risk of non-communicable diseases. Here we aim to investigate lifestyle factors (diet, eating behavior, smoking, perceived stress, time spent sedentary/day) and social determinants (education level, employment status, and place of residence) associated with SJL corrected for sleep duration (SJLsc) and eating jetlag. Self-declared data on age, gender, lifestyle, and eating behavior were collected online from March 2021 to February 2022 of 432 adults. Principal component analysis was used to extract three dietary patterns (Prudent, Western, and Risky). Prevalence of SJLsc was 35.2%, with no significant difference between men and women (p = 0.558). Adults with SJLsc had significantly larger eating jetlag (56.0 min vs 41.2 min, p = 0.001). Increasing SJLsc duration was associated with an increased adherence to a Risky dietary pattern (standardized β coefficient = .165, p = 0.012); increasing eating jetlag duration was associated with an increased adherence to a Western dietary pattern (standardized β coefficient = .127, p = 0.039) and a shorter sleep duration (standardized βcoefficient = -0.147, p = 0.011). Among social determinants analyzed, only being a student or employed was associated with eating jetlag (standardized β coefficient = 0.125, p = 0.044), while none displayed any relationship with SJLsc. Our survey provides evidence on a risky behavior among young persons with SJLsc and eating jetlag, characterized by a higher alcohol consumption, and a diet rich in processed meat and high-fat food, eating during nights, and shorter sleep duration with potential long-term negative health outcomes.
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Affiliation(s)
- Dana Ciobanu
- Department of Diabetes and Nutrition Diseases, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Diabetes Center, Emergency Clinical County Hospital Cluj, Cluj-Napoca, Romania
| | - Mihai Porojan
- Department of Internal Medicine, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Internal Medicine, Emergency Clinical County Hospital in Cluj-Napoca, Cluj-Napoca, Romania
| | - Cornelia Bala
- Department of Diabetes and Nutrition Diseases, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Diabetes Center, Emergency Clinical County Hospital Cluj, Cluj-Napoca, Romania
| | - Ana Maria Zah
- Diabetes Center, Emergency Clinical County Hospital Cluj, Cluj-Napoca, Romania
| | - Ioana Oroian
- Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Gabriela Roman
- Department of Diabetes and Nutrition Diseases, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Diabetes Center, Emergency Clinical County Hospital Cluj, Cluj-Napoca, Romania
| | - Adriana Rusu
- Department of Diabetes and Nutrition Diseases, Faculty of Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Diabetes Center, Emergency Clinical County Hospital Cluj, Cluj-Napoca, Romania
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48
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Nunes PP, Resende CM, Barros Silva ED, Piones Bastos DC, Ramires Filho MLM, Leocadio-Miguel MA, Pedrazzoli M, Sobreira-Neto MA, de Andrade TG, Góes Gitaí LL, Teles F. Hemodialysis-induced chronodisruption and chronotype distribution in patients with chronic kidney disease. Chronobiol Int 2024; 41:283-293. [PMID: 38311937 DOI: 10.1080/07420528.2024.2306838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 01/12/2024] [Indexed: 02/06/2024]
Abstract
Changes in circadian rhythms have been observed in patients with chronic kidney disease (CKD), and evidence suggests that these changes can have a negative impact on health. This study aimed to investigate the existence of hemodialysis-induced chronodisruption, the chronotype distribution, and their association with sleep quality and quality of life (QoL). This was a cross-sectional study that enrolled 165 patients (mean age: 51.1 ± 12.5 y, 60.6% male) undergoing hemodialysis from three local units. The following instruments were used: the Morning-Eveningness Questionnaire (MEQ); a modified version of the Munich Chronotype Questionnaire (MCQT) to estimate hemodialysis-induced chronodisruption (HIC); the Kidney Disease QoL Short Form (KDQOL-SF); the Epworth Sleepiness Scale (ESS); the Pittsburgh Sleep Quality Index (PSQI) and the 10-Cognitive Screener (10-CS). HIC was present in 40.6% of CKD patients. Morning chronotype was prevalent in CKD patients (69%) compared to evening-type (17.1%) and significantly different from a paired sample from the general population (p < 0.001). HIC and chronotype were associated with different domains of QoL but not with sleep quality. This study suggests that there is a HIC and that morning chronotype is associated with CKD patients undergoing hemodialysis, with implications for QoL.
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Affiliation(s)
| | | | | | | | | | | | - Mario Pedrazzoli
- School of Arts, Sciences and Humanities, University of São Paulo, São Paulo, Brazil
| | | | - Tiago Gomes de Andrade
- Circadian Medicine Center, Faculty of Medicine, Federal University of Alagoas, Maceió, Brazil
| | - Lívia Leite Góes Gitaí
- Division of Neurology, Faculty of Medicine, Federal University of Alagoas, Maceió, Brazil
| | - Flávio Teles
- Division of Nephrology, Faculty of Medicine, Federal University of Alagoas, Maceió, Brazil
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49
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Baldan GE, Ozcelik-Ersu D. Determination of the relationship between body composition and nutritional habits and chronotype in healthy Turkish adults. Chronobiol Int 2024; 41:226-236. [PMID: 38247303 DOI: 10.1080/07420528.2024.2305658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
This cross-sectional study aims to determine the relationship between chronotype characteristics, dietary habits, and body composition in 110 adults, of which 75.5% are female, residing in Mersin, Türkiye. Data collection included a descriptive information form, the Morningness-Eveningness Scale for assessing chronotype, a detailed 24-hour dietary record for evaluating dietary intake, and Bioelectrical Impedance Analysis for accurate anthropometric measurements of body composition. The evening types had higher BMI, body weight, waist circumference, hip circumference, total fat mass, and lower body water ratio than the morning types. Positive correlations were found between sleep duration and body mass index, total fat mass, and fat percentage. The evening types tended to skip breakfast more frequently and had higher energy intake during dinners and snacks. Additionally, the evening types consumed more lipids, carbohydrates, sodium, and saturated and polyunsaturated fatty acids. These findings suggest that chronotype influences anthropometric measurements, nutritional habits, and meal energy distribution. These findings highlight the importance of considering chronotype characteristics to understand how body composition and dietary patterns interact, underscoring the need for customized interventions to promote healthier lifestyles.
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Affiliation(s)
- Güler Ezgi Baldan
- Department of Nutrition and Dietetics, School of Health Sciences, Istanbul Okan University, Istanbul, Türkiye
| | - Dilek Ozcelik-Ersu
- Department of Nutrition and Dietetics, School of Health Sciences, Istanbul Arel University, Istanbul, Türkiye
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50
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Suchecki D, Meerlo P, Wu TJ. Editorial: The bidirectional relationship between sleep and neuroendocrinology. Front Endocrinol (Lausanne) 2024; 15:1372967. [PMID: 38344664 PMCID: PMC10853462 DOI: 10.3389/fendo.2024.1372967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/15/2024] Open
Affiliation(s)
- Deborah Suchecki
- Department of Psychobiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Peter Meerlo
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
| | - T. John Wu
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
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