101
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Hisler GC, Dickinson DL, Bruce SA, Hasler BP. Preliminary evidence that misalignment between sleep and circadian timing alters risk-taking preferences. J Sleep Res 2023; 32:e13728. [PMID: 36122900 PMCID: PMC10023298 DOI: 10.1111/jsr.13728] [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: 03/10/2022] [Revised: 07/19/2022] [Accepted: 08/29/2022] [Indexed: 11/27/2022]
Abstract
Decision-making has been shown to suffer when circadian preference is misaligned with time of assessment; however, little is known about how misalignment between sleep timing and the central circadian clock impacts decision-making. This study captured naturally occurring variation in circadian alignment (i.e., alignment of sleep-wake timing with the central circadian clock) to examine if greater misalignment predicts worse decision-making. Over the course of 2 weeks, 32 late adolescent drinkers (aged 18-22 years; 61% female; 69% White) continuously wore actigraphs and completed two overnight in-laboratory visits (Thursday and Sunday) in which both dim-light melatonin onset (DLMO) and behavioural decision-making (risk taking, framing, and strategic reasoning tasks) were assessed. Sleep-wake timing was assessed by actigraphic midsleep from the 2 nights prior to each in-laboratory visit. Alignment was operationalised as the phase angle (interval) between average DLMO and average midsleep. Multilevel modelling was used to predict performance on decision-making tasks from circadian alignment during each in-laboratory visit; non-linear associations were also examined. Shorter DLMO-midsleep phase angle predicted greater risk-taking under conditions of potential loss (B = -0.11, p = 0.06), but less risk-taking under conditions of potential reward (B = 0.14, p = 0.03) in a curvilinear fashion. Misalignment did not predict outcomes in the framing and strategic reasoning tasks. Findings suggest that shorter alignment in timing of sleep with the central circadian clock (e.g., phase-delayed misalignment) may impact risky decision-making, further extending accumulating evidence that sleep/circadian factors are tied to risk-taking. Future studies will need to replicate findings and experimentally probe whether manipulating alignment influences decision-making.
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Affiliation(s)
| | - David L. Dickinson
- Appalachian State University, Department of Economics and CERPA; ESI; IZA
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102
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Gorgol J, Stolarski M, Jankowski T. The moderating role of dispositional mindfulness in the associations of morningness-eveningness with depressive and anxiety symptoms. J Sleep Res 2023; 32:e13657. [PMID: 35712917 DOI: 10.1111/jsr.13657] [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: 03/22/2022] [Revised: 04/22/2022] [Accepted: 05/09/2022] [Indexed: 11/30/2022]
Abstract
Several studies have shown that eveningness is positively related to both depressive and anxiety symptoms. However, little is known about factors that may play a protective role against the undesirable emotional consequences of evening preference. Thus, in the present study, we explored the moderating effects of dispositional mindfulness on the relationship between morningness-eveningness and the presence of depressive symptoms, as well as between morningness-eveningness and the presence of anxiety symptoms. The study was conducted on a group of 1107 individuals (559 women and 548 men) aged 18-55 years (M = 36.26, SD = 9.89). Consistent with previous findings, eveningness was positively related to the presence of both depressive and anxiety symptoms. The magnitude of these effects decreased with higher dispositional mindfulness. The latter result remained significant when the analogical moderating effects of personality, established in earlier studies, were controlled for in the regression models. This leads to the conclusion that dispositional mindfulness may act as a protective factor against the elevated depressive and anxiety symptoms reported by evening-oriented individuals.
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Affiliation(s)
- Joanna Gorgol
- Faculty of Psychology, University of Warsaw, Warszawa, Poland
| | | | - Tomasz Jankowski
- Institute of Psychology, The John Paul II Catholic University of Lublin, Lublin, Poland
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103
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Wang Y, Liu H, Wang YR, Wei J, Zhao RR, Fang JQ. Relationship between chronotypes and aggression in adolescents: a cross-sectional study. BMC Psychiatry 2023; 23:214. [PMID: 36991419 PMCID: PMC10061703 DOI: 10.1186/s12888-023-04615-0] [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: 12/12/2022] [Accepted: 02/17/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND This study aimed to investigate the relationship between chronotypes and aggression in adolescents. METHODS A cross-sectional study was conducted on 755 primary and secondary school students aged 11-16 years in rural areas of Ningxia Province, China. The Chinese version of the Buss-Perry Aggression Questionnaire (AQ-CV) and the Chinese version Morningness-Eveningness Questionnaire (MEQ-CV) were used to assess the aggressive behavior and chronotypes of the study subjects. The Kruskal-Wallis test was then used to compare the differences in aggression among adolescents with different chronotypes, and Spearman correlation analysis to determine the relationship between chronotypes and aggression. Further linear regression analysis was used to investigate the effects of chronotype, personality traits, family environment, and class environment on adolescent aggression. RESULTS There were significant differences in chronotypes between different age groups and different sexes. Spearman correlation analysis showed that the MEQ-CV total score was negatively correlated with the AQ-CV total score (r = -0.263) and score of each AQ-CV subscale. In Model 1, chronotypes were negatively associated with aggression when controlling for age and sex, and evening-type adolescents might be more likely to exhibit aggressive behavior (b = -0.513, 95% CI: [-0.712, -0.315], P < 0.001); in Model 2, the negative association remained after controlling for family and class environment on the basis of Model 1 (b = -0.404, 95% CI: [-0.601, -0.208], P < 0.001); and in Model 3, the negative association still existed after controlling for personality traits on the basis of Model 2 (b = -0.383, 95% CI: [-0.577, -0.190], P < 0.001). CONCLUSION Compared to morning-type adolescents, evening-type adolescents were more likely to exhibit aggressive behavior. Given social expectations for MT adolescents, adolescents should be actively guided to develop a good circadian rhythm that may be more conducive to their physical and mental development.
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Affiliation(s)
- Yuan Wang
- Mental Health Center, The General Hospital Ningxia Medical University, 750004, Yinchuan, People's Republic of China
| | - Hao Liu
- Graduate School, Xi'an International Studies University, 710119, Xi'an, People's Republic of China
| | - Yan-Rong Wang
- School of Nursing, Ningxia Medical University, 750004, Yinchuan, People's Republic of China
| | - Jia Wei
- The Fourth Department of Geriatrics, Hangzhou Seventh People's Hospital, 310012, Hangzhou, People's Republic of China
| | - Ran-Ran Zhao
- Mental Health Center, the First Hospital of Hebei Medical University, Hebei Technical Innovation Center for Mental Health Assessment and Intervention, 050031, Shijiazhuang, Hebei Province, China
| | - Jian-Qun Fang
- Mental Health Center, The General Hospital Ningxia Medical University, 750004, Yinchuan, People's Republic of China.
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104
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Uccella S, Cordani R, Salfi F, Gorgoni M, Scarpelli S, Gemignani A, Geoffroy PA, De Gennaro L, Palagini L, Ferrara M, Nobili L. Sleep Deprivation and Insomnia in Adolescence: Implications for Mental Health. Brain Sci 2023; 13:brainsci13040569. [PMID: 37190534 DOI: 10.3390/brainsci13040569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/20/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
Sleep changes significantly throughout the human lifespan. Physiological modifications in sleep regulation, in common with many mammals (especially in the circadian rhythms), predispose adolescents to sleep loss until early adulthood. Adolescents are one-sixth of all human beings and are at high risk for mental diseases (particularly mood disorders) and self-injury. This has been attributed to the incredible number of changes occurring in a limited time window that encompasses rapid biological and psychosocial modifications, which predispose teens to at-risk behaviors. Adolescents’ sleep patterns have been investigated as a biunivocal cause for potential damaging conditions, in which insufficient sleep may be both a cause and a consequence of mental health problems. The recent COVID-19 pandemic in particular has made a detrimental contribution to many adolescents’ mental health and sleep quality. In this review, we aim to summarize the knowledge in the field and to explore implications for adolescents’ (and future adults’) mental and physical health, as well as to outline potential strategies of prevention.
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105
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Arora N, Richmond RC, Brumpton BM, Åsvold BO, Dalen H, Skarpsno ES, Strand LB. Self-reported insomnia symptoms, sleep duration, chronotype and the risk of acute myocardial infarction (AMI): a prospective study in the UK Biobank and the HUNT Study. Eur J Epidemiol 2023:10.1007/s10654-023-00981-x. [DOI: 10.1007/s10654-023-00981-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 02/25/2023] [Indexed: 03/29/2023]
Abstract
AbstractInsomnia and short/long sleep duration increase the risk of AMI, but their interaction with each other or with chronotype is not well known. We investigated the prospective joint associations of any two of these sleep traits on risk of AMI. We included 302 456 and 31 091 participants without past AMI episodes from UK Biobank (UKBB; 2006–10) and the Trøndelag Health Study (HUNT2; 1995–97), respectively. A total of 6 833 and 2 540 incident AMIs were identified during an average 11.7 and 21.0 years follow-up, in UKBB and HUNT2, respectively. Compared to those who reported normal sleep duration (7–8 h) without insomnia symptoms, the Cox proportional hazard ratios (HRs) for incident AMI in UKBB among participants who reported normal, short and long sleep duration with insomnia symptoms were 1.07 (95% CI 0.99, 1.15), 1.16 (95% CI 1.07, 1.25) and 1.40 (95% CI 1.21, 1.63), respectively. The corresponding HRs in HUNT2 were 1.09 (95% CI 0.95, 1.25), 1.17 (95% CI 0.87, 1.58) and 1.02 (95% CI 0.85, 1.23). The HRs for incident AMI in UKBB among evening chronotypes were 1.19 (95% CI 1.10, 1.29) for those who had insomnia symptoms, 1.18 (95% CI 1.08, 1.29) for those with short sleep duration, and 1.21 (95% CI 1.07, 1.37) for those with long sleep duration, compared to morning chronotypes without another sleep symptom. The relative excess risk for incident AMI in UKBB due to interaction between insomnia symptoms and long sleep duration was 0.25 (95% CI 0.01, 0.48). Insomnia symptoms with long sleep duration may contribute more than just an additive effect of these sleep traits on the risk of AMI.
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106
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Coskun A, Zarepour A, Zarrabi A. Physiological Rhythms and Biological Variation of Biomolecules: The Road to Personalized Laboratory Medicine. Int J Mol Sci 2023; 24:ijms24076275. [PMID: 37047252 PMCID: PMC10094461 DOI: 10.3390/ijms24076275] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/24/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
The concentration of biomolecules in living systems shows numerous systematic and random variations. Systematic variations can be classified based on the frequency of variations as ultradian (<24 h), circadian (approximately 24 h), and infradian (>24 h), which are partly predictable. Random biological variations are known as between-subject biological variations that are the variations among the set points of an analyte from different individuals and within-subject biological variation, which is the variation of the analyte around individuals’ set points. The random biological variation cannot be predicted but can be estimated using appropriate measurement and statistical procedures. Physiological rhythms and random biological variation of the analytes could be considered the essential elements of predictive, preventive, and particularly personalized laboratory medicine. This systematic review aims to summarize research that have been done about the types of physiological rhythms, biological variations, and their effects on laboratory tests. We have searched the PubMed and Web of Science databases for biological variation and physiological rhythm articles in English without time restrictions with the terms “Biological variation, Within-subject biological variation, Between-subject biological variation, Physiological rhythms, Ultradian rhythms, Circadian rhythm, Infradian rhythms”. It was concluded that, for effective management of predicting, preventing, and personalizing medicine, which is based on the safe and valid interpretation of patients’ laboratory test results, both physiological rhythms and biological variation of the measurands should be considered simultaneously.
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107
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Barnes-Farrell JL, Laguerre RA, Di Milia LV. An evaluation of morningness and schedule misfit using the revised Preferences Scale (PS-6): Implications for work and health outcomes among healthcare workers. Chronobiol Int 2023:1-14. [PMID: 36942679 DOI: 10.1080/07420528.2023.2193272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The last several decades of shift work tolerance and circadian misalignment research has had mixed results regarding the adverse impact of shift work on work and health outcomes. This inconsistency is, in part, due to the circadian typology measure employed and the study methodology. Based on models of shift work and health, the present study examined associations between circadian misalignment, end-of-day strain, and job- and health-related outcomes using the revised Preferences Scale (PS-6). A sample of 129 healthcare workers (76.7% female) from the United States (67%) and Australia (34.1%) aged 22 to 64 responded to a self-report questionnaire on work schedules, work stressors, and well-being. Multiple regression analysis found that the preferences for cognitive activity subscale of the PS-6 moderated the association between shift work and strain (b = -.36, p < .001). Those who worked nights experienced more strain if their preferences for cognitive activity were misaligned, whereas no differences in strain were observed among day workers. Moderated-mediation analyses, on the basis 95% confidence intervals, found that shift work had a conditional indirect effect on work-family conflict, job satisfaction, and health-related quality of life, via strain, and the effect was moderated by preferences for cognitive activity. Findings provide additional evidence for the criterion and external validity of the PS-6, and importantly, the present study establishes further support for models of shift work and health. Overall, the analyses highlight the importance of exploring the interactions between shift work and different dimensions of morningness in shift work tolerance research.
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Affiliation(s)
- Janet L Barnes-Farrell
- Department of Psychological Sciences, University of Connecticut, Storrs, Connecticut, USA
| | - Rick A Laguerre
- Department of Psychology, Montclair State University, Montclair, New Jersey, USA
| | - Lee V Di Milia
- School of Business and Law, Central Queensland University, Rockhampton, Australia
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108
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Carciofo R. Morning affect or sleep inertia? Comparing the constructs and their measurement. Chronobiol Int 2023:1-15. [PMID: 36912023 DOI: 10.1080/07420528.2023.2187211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
The construct of Morning Affect (MA; alertness upon awakening/time required to feel fully awake) emerged from exploratory factor analysis of morningness-eveningness questionnaires, and while it has been equated with morningness-eveningness preference it has much conceptual overlap with sleep inertia (SI; the transitional state between sleep and being fully awake). The current study compared questionnaire measures of these constructs to help clarify their inter-relationships. A volunteer sample of 453 students at an English-medium university in China completed an online survey including the Sleep Inertia Questionnaire (SIQ), the Morningness-Eveningness-Stability-Scale-improved (MESSi), with subscales for MA, Eveningness, and Distinctness (amplitude of diurnal variation), and the reduced Morningness-Eveningness Questionnaire (rMEQ). Measures of depression, sleep quality, mindfulness, and personality were also included. Exploratory factor analysis of the SIQ, MESSi, and rMEQ items revealed seven factors: Cognitive, Emotional, and Physiological SI, Responses to SI (including one MA item), and Duration of SI (one SIQ item, 3/5 MA items, and one rMEQ item); Morningness-Eveningness (MESSi Eveningness items, plus 3/5 rMEQ items); Distinctness (3/5 MESSi items). These results suggest that Morning Affect may be better characterised as a general measure of sleep inertia, and may contribute to ongoing development/refinement of questionnaire measures of circadian functioning.
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Affiliation(s)
- Richard Carciofo
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
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109
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Kaur S, Ng CM, Tang SY, Kok EY. Weight status of working adults: The effects of eating misalignment, chronotype, and eating jetlag during mandatory confinement. Chronobiol Int 2023:1-10. [PMID: 36883329 DOI: 10.1080/07420528.2023.2186120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
This study aimed to examine the association between chronotype, eating jetlag, and eating misalignment with weight status among Malaysian adults during the COVID-19 restriction. This online cross-sectional study included 175 working adults recruited from March to July 2020. The chronotype was assessed using Morningness Eveningness Questionnaire (MEQ) while eating jetlag and mealtime variability were measured using Chrononutrition Profile Questionnaire (CPQ). Multiple linear regression demonstrated that lower breakfast frequency (β=-0.258, p = .002) and longer eating duration (β = 0.393, p < .001) were associated with later first eating events on workfree days. Both intermediate (β = 0.543, p < .001) and evening chronotypes (β = 0.523, p = .001) tend to eat their first meals later compared to morning person. Similar patterns were observed for overall eating jetlaggers in which lower breakfast frequency (β=-0.022, p = .011), longer eating duration (β = 0.293, p < .001), intermediate chronotype (β = 0.512, p < .001), and evening chronotype (β = 0.495, p = .003) were associated with eating later meals on workfree days. Additionally, higher BMI was also associated with eating later meals on workfree days (β = 0.181, p = .025). During movement restriction, discrepancies of mealtimes during work and workfree days offer new insight into modern eating habits that can influence weight status and general eating habits such as breakfast skipping and total daily eating duration. Population meal timing variability was affected during movement restrictions, and it was closely related to weight status.
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Affiliation(s)
- Satvinder Kaur
- Department Faculty of Applied Sciences, UCSI University, Kuala Lumpur, Malaysia
| | - Choon Ming Ng
- School of Pharmacy, Monash University, Selangor, Malaysia
| | - Shu Ying Tang
- Department Faculty of Applied Sciences, UCSI University, Kuala Lumpur, Malaysia
| | - Ee Yin Kok
- Department Faculty of Applied Sciences, UCSI University, Kuala Lumpur, Malaysia
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110
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Ansu Baidoo V, Knutson KL. Associations between circadian disruption and cardiometabolic disease risk: A review. Obesity (Silver Spring) 2023; 31:615-624. [PMID: 36750239 PMCID: PMC9974590 DOI: 10.1002/oby.23666] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 02/09/2023]
Abstract
The human circadian system plays a vital role in many physiological processes, and circadian rhythms are found in virtually all tissues and organs. The disruption of circadian rhythms may lead to adverse health outcomes. Evidence from recent population-based studies was reviewed because they represent real-world behavior and can be useful in developing future studies to reduce the risk of adverse health conditions, including cardiovascular diseases, obesity, and diabetes mellitus, which may occur because of circadian disruption. An electronic search in PubMed and Web of Science (2012-2022) was performed. Selected articles were based on specific inclusion and exclusion criteria. Five factors that may disrupt circadian rhythm alignment are discussed: shift work, late chronotype, late sleep timing, sleep irregularity, and late meal timing. Evidence from observational studies of these circadian disruptors suggests potential detrimental effects on cardiometabolic health, including higher BMI/obesity, higher blood pressure, greater dyslipidemia, greater inflammation, and diabetes. Future research should identify the specific underlying pathways in order to mitigate the health consequences of shift work. Furthermore, optimal sleep and mealtimes for metabolic health can be explored in intervention studies. Lastly, it is important that the timing of external environmental cues (such as light) and behaviors that influence circadian rhythms are managed.
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Affiliation(s)
- Velarie Ansu Baidoo
- Center for Circadian and Sleep Medicine, Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Kristen L Knutson
- Center for Circadian and Sleep Medicine, Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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111
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Díaz Morales JF, Escribano C, Puig-Navarro Y, Jankowski KS. Factors Underpinning the Shift to Eveningness during Early Adolescence: Pubertal Development and Family Conflicts. J Youth Adolesc 2023; 52:561-569. [PMID: 36435916 PMCID: PMC9884249 DOI: 10.1007/s10964-022-01708-z] [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: 07/05/2022] [Accepted: 11/08/2022] [Indexed: 11/27/2022]
Abstract
Biological and psychosocial factors have been related to the shift to eveningness during early adolescence but it is necessary to study them from a longitudinal perspective. This longitudinal study examined the contribution of these factors to the onset of a shift towards eveningness in early adolescence. A sample of 440 (49.9% boys) Spanish adolescents were assessed for pubertal development, family conflicts, and morningness/eveningness. The same measures were taken twice at the age of 12 and one year later (T1: M = 12.47, SD = 0.75 and T2: M = 13.64, SD = 0.78). Pubertal development and family conflicts were considered predictors of morningness/eveningness in a mixed-effects multilevel model. The developmental shift towards eveningness appeared in girls but not in boys. The shift was related to more advanced pubertal development and more conflicts in the family. This study has implications for shaping healthy sleep habits in adolescents and possible interventions focused on family dynamics.
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Affiliation(s)
- Juan F Díaz Morales
- Individual Differences, Work and Social Psychology, Faculty of Psychology, Complutense University of Madrid, Campus de Somosaguas, s/n, 28223, Pozuelo de Alarcón, Madrid, Spain.
| | - Cristina Escribano
- Cardenal Cisneros University College, University of Alcalá, Alcala de Henares (Madrid), Spain
| | - Yaiza Puig-Navarro
- Individual Differences, Work and Social Psychology, Faculty of Psychology, Complutense University of Madrid, Campus de Somosaguas, s/n, 28223, Pozuelo de Alarcón, Madrid, Spain
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112
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Chauhan S, Norbury R, Faßbender KC, Ettinger U, Kumari V. Beyond sleep: A multidimensional model of chronotype. Neurosci Biobehav Rev 2023; 148:105114. [PMID: 36868368 DOI: 10.1016/j.neubiorev.2023.105114] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/09/2023] [Accepted: 02/27/2023] [Indexed: 03/05/2023]
Abstract
Chronotype can be defined as an expression or proxy for circadian rhythms of varied mechanisms, for example in body temperature, cortisol secretion, cognitive functions, eating and sleeping patterns. It is influenced by a range of internal (e.g., genetics) and external factors (e.g., light exposure), and has implications for health and well-being. Here, we present a critical review and synthesis of existing models of chronotype. Our observations reveal that most existing models and, as a consequence, associated measures of chronotype have focused solely or primarily on the sleep dimension, and typically have not incorporated social and environmental influences on chronotype. We propose a multidimensional model of chronotype, integrating individual (biological and psychological), environmental and social factors that appear to interact to determine an individual's true chronotype with potential feedback loops between these factors. This model could be beneficial not only from a basic science perspective but also in the context of understanding health and clinical implications of certain chronotypes as well as designing preventive and therapeutic approaches for related illnesses.
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Affiliation(s)
- Satyam Chauhan
- Department of Psychology, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom; Centre for Cognitive and Clinical Neuroscience, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom.
| | - Ray Norbury
- Department of Psychology, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom; Centre for Cognitive and Clinical Neuroscience, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom
| | | | | | - Veena Kumari
- Department of Psychology, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom; Centre for Cognitive and Clinical Neuroscience, College of Health, Medicine and Life Sciences, Brunel University London, London, United Kingdom.
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113
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Demirci A, Hızlı F, Hamurcu HD, Başar H. Erectile dysfunction, anxiety, perceived stress, and insomnia are more common among acquired premature ejaculation patients compared to other premature ejaculation syndromes. Andrology 2023; 11:425-432. [PMID: 36417491 DOI: 10.1111/andr.13341] [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: 10/06/2022] [Revised: 11/03/2022] [Accepted: 11/14/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Premature ejaculation (PE) is the most common ejaculatory function disorder. To date, four types of PE have been identified depending on the severity, onset, and course of the problem. OBJECTIVES The aim of this study was to investigate whether or not there is a difference between these types in respect of anxiety, perceived stress, insomnia severity, and sleep chronotype. MATERIALS AND METHODS The study included 112 patients diagnosed with PE in our clinic between October 2021 and May 2022. The patients were separated into groups according to PE types of lifelong (LPE, n = 39), acquired (APE, n = 45), variable (VPE, n = 10), and subjective (SPE, n = 18). In addition to the demographic and clinical data, the scores were recorded of all participants in the International Index of Erectile Function-5, Hospital Anxiety and Depression Scale, Premature Ejaculation Diagnostic Tool (PEDT), Insomnia Severity Index (ISI), Perceived Stress Scale (PSS), and Morningness Eveningness Questionnaire (MEQ). RESULTS SPE was determined more in university graduate patients (42.1% vs. LPE, 21.1%; APE, 36.8%; VPE, 0%; p = 0.01). In patients with APE, erectile dysfunction was more severe (80.0% vs. LPE, 8.0%; SPE, 12.0%; VPE, 0%; p < 0.001). The median (IQR) PEDT score was determined to be higher in APE than in LPE and SPE (16(5), 13(7), 11(5), p = 0.001, respectively). Patients with APE were determined to have higher median (IQR) ISI (21(9) vs. LPE, 8(7); SPE, 5(8); VPE 8(4), p < 0.001) and PSS scores (35(12) vs. LPE, 22 (7); SPE,22(5); VPE 21(6), p < 0.001), the sleep chronotype was more eveningness according to the MEQ (80.8% vs. LPE, 19.2%; VPE, 0%; SPE, 0%; p < 0.001), and there were seen be more anxiety symptoms (75.5% vs. LPE,12.2%; VPE, 0%; SPE, 12.2%; p < 0.001). CONCLUSION Psychological status and sleep health were concluded to be important factors for PE patients, and the patients with acquired PE were the group most affected by these factors.
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Affiliation(s)
- Aykut Demirci
- Department of Urology, Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Ankara, Turkey
| | - Fatih Hızlı
- Department of Urology, Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Ankara, Turkey
| | - Hayriye Dilek Hamurcu
- Department of Psychiatry, Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Ankara, Turkey
| | - Halil Başar
- Department of Urology, Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Ankara, Turkey
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114
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Cooper R, Di Biase MA, Bei B, Allen NB, Schwartz O, Whittle S, Cropley V. Development of morning-eveningness in adolescence: implications for brain development and psychopathology. J Child Psychol Psychiatry 2023; 64:449-460. [PMID: 36325967 PMCID: PMC10952670 DOI: 10.1111/jcpp.13718] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/14/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Morning-evening preference is defined as an individual's preference for a morning- or evening-oriented rhythm. Across adolescence, a preference for eveningness becomes more predominant. Although eveningness is cross-sectionally associated with internalizing and externalizing psychopathology, few studies have examined developmental changes in eveningness and its potential biological substrates. Here, we investigated the longitudinal relationships among the trajectory of eveningness preference, internalizing and externalizing psychopathology and white matter development, across adolescence. METHODS Two-hundred and nine adolescents (49% male) were assessed longitudinally at four separate time points between 12 and 19 years of age. Morning-evening preference and internalizing and externalizing symptoms were assessed at each time point. Diffusion-weighted images were acquired on a subset of participants at the final two time points to estimate changes in global mean fractional anisotropy (FA). Linear mixed models were performed to estimate the change in eveningness over time. A series of linear regression models assessed the influence of change in eveningness on psychopathology and white matter development at age 19. RESULTS Across the sample, a preference for eveningness became more predominant by 19 years of age. Greater individual-level change towards eveningness significantly predicted greater severity in externalizing, but not internalizing, symptoms at 19 years of age. In contrast, change in psychopathology from 12 to 19 years of age was not associated with morning-eveningness at age 19. A change towards eveningness predicted an attenuated increase in FA between 17 and 19 years of age. CONCLUSIONS This study suggests that developmental changes in morning-evening preference may predict both neurodevelopmental and psychological outcomes in adolescents.
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Affiliation(s)
- Rebecca Cooper
- Melbourne Neuropsychiatry CentreThe University of Melbourne and Melbourne HealthMelbourneVictoriaAustralia
| | - Maria A. Di Biase
- Melbourne Neuropsychiatry CentreThe University of Melbourne and Melbourne HealthMelbourneVictoriaAustralia
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Bei Bei
- Turner Institute for Brain and Mental Health, School of Psychological SciencesMonash UniversityMelbourneVictoriaAustralia
| | | | - Orli Schwartz
- Orygen Centre for Youth Mental HealthMelbourneVictoriaAustralia
| | - Sarah Whittle
- Melbourne Neuropsychiatry CentreThe University of Melbourne and Melbourne HealthMelbourneVictoriaAustralia
| | - Vanessa Cropley
- Melbourne Neuropsychiatry CentreThe University of Melbourne and Melbourne HealthMelbourneVictoriaAustralia
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da Costa Lopes L, Rollemberg Poyares DL, Tufik S, La Banca de Oliveira S, Ribeiro da Silva Vallim J, Kiyomi Ota V, Melaragno MI, Ohayon M, Berlim de Mello C. The effect of brain-derived neurotrophic factor Val66Met polymorphism on adolescent activity and rest rhythms, circadian preferences and attentional performance. Sleep Med 2023; 104:64-72. [PMID: 36898188 DOI: 10.1016/j.sleep.2023.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND Variations in circadian regulating mechanisms generate different individual preferences in respect of sleep and activity timing, which are known as chronotypes. In this sense, specifically during adolescence, there is a greater tendency for an eveningness chronotype. One factor that has been shown to have an impact on circadian rhythm patterns, as well as on some aspects of cognitive function, is the relatively common Val66Met (rs6265) polymorphism in the human brain-derived neurotrophic factor gene. OBJECTIVE This study aimed to evaluate the effect of the BDNF Val66Met polymorphism on the performance of adolescents in attentional tests, circadian preferences and activity-rest rhythm. METHODS 85 healthy high school students completed the Morningness-Eveningness Questionnaire to assess their circadian preferences; were evaluated using the Psychological Battery for Attention Assessment; and were categorized as carriers and non-carriers of the rs6265 polymorphism using the TaqMan rt-PCR technique. A subsample of 42 students had their activity/rest rhythm recorded by actigraphy for nine days from which sleep parameters were estimated. RESULTS Circadian preference did not affect attentional performance (p > 0.1), but the time that the students attended school had an impact on all types of attention with morning shift students scoring higher, regardless of chronotype (p < 0.05). The presence of the BDNF Val66Met polymorphism was associated only with alternate attention performance (p < 0.05). Regarding actigraphy evaluation, the carriers of the polymorphism demonstrated significantly higher total time in bed, total sleep time, social jetlag, and earlier sleep onset. CONCLUSIONS The results indicate some degree of adaptation in the students' attentional performance, according to their school schedules. The presence of BDNF polymorphism demonstrated a counterintuitive impact on attentional performance, comparing to previous findings. The findings reinforce the effect of genetic traits on sleep-wake rhythm parameters, when objectively evaluated.
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Affiliation(s)
- Luísa da Costa Lopes
- Department of Psychobiology, Escola Paulista de Medicina (EPM), Federal University of São Paulo, Rua Botucatu, 862, Edifício Ciências Biomédicas, 1° Andar Vila Clementino, São Paulo, SP, 04724-000, Brazil
| | - Dalva Lucia Rollemberg Poyares
- Department of Psychobiology, Escola Paulista de Medicina (EPM), Federal University of São Paulo, Rua Botucatu, 862, Edifício Ciências Biomédicas, 1° Andar Vila Clementino, São Paulo, SP, 04724-000, Brazil
| | - Sergio Tufik
- Department of Psychobiology, Escola Paulista de Medicina (EPM), Federal University of São Paulo, Rua Botucatu, 862, Edifício Ciências Biomédicas, 1° Andar Vila Clementino, São Paulo, SP, 04724-000, Brazil
| | - Sophia La Banca de Oliveira
- Department of Psychobiology, Escola Paulista de Medicina (EPM), Federal University of São Paulo, Rua Botucatu, 862, Edifício Ciências Biomédicas, 1° Andar Vila Clementino, São Paulo, SP, 04724-000, Brazil
| | - Julia Ribeiro da Silva Vallim
- Department of Psychobiology, Escola Paulista de Medicina (EPM), Federal University of São Paulo, Rua Botucatu, 862, Edifício Ciências Biomédicas, 1° Andar Vila Clementino, São Paulo, SP, 04724-000, Brazil
| | - Vanessa Kiyomi Ota
- Department of Morphology and Genetics, Genetics Division, Escola Paulista de Medicina (EPM), Federal University of São Paulo, Rua Botucatu, 740, Edifício Leitão da Cunha, 1 andar, São Paulo, SP, 04023-900, Brazil
| | - Maria Isabel Melaragno
- Department of Morphology and Genetics, Genetics Division, Escola Paulista de Medicina (EPM), Federal University of São Paulo, Rua Botucatu, 740, Edifício Leitão da Cunha, 1 andar, São Paulo, SP, 04023-900, Brazil
| | - Maurice Ohayon
- Stanford Sleep Epidemiology Research Center, School of Medicine, Stanford University - Stanford, CA, USA
| | - Claudia Berlim de Mello
- Department of Psychobiology, Escola Paulista de Medicina (EPM), Federal University of São Paulo, Rua Botucatu, 862, Edifício Ciências Biomédicas, 1° Andar Vila Clementino, São Paulo, SP, 04724-000, Brazil.
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Carmassi C, Cruz-Sanabria F, Gravina D, Violi M, Bonelli C, Dell’Oste V, Pedrinelli V, Frumento P, Faraguna U, Dell’Osso L. Exploratory Study on the Associations between Lifetime Post-Traumatic Stress Spectrum, Sleep, and Circadian Rhythm Parameters in Patients with Bipolar Disorder. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3566. [PMID: 36834262 PMCID: PMC9967425 DOI: 10.3390/ijerph20043566] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 02/05/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
The present study aimed at exploring whether lifetime post-traumatic stress spectrum symptoms are associated with chronotype in patients with bipolar disorder (BD). Moreover, we explored whether the chronotype can moderate the potential associations between lifetime post-traumatic stress spectrum symptoms and rest-activity circadian and sleep-related parameters. A total of 74 BD patients were administered the Trauma and Loss Spectrum Self-Report (TALS-SR) lifetime version for lifetime post-traumatic stress spectrum symptoms, the Pittsburgh Sleep Quality Index (PSQI) for self-reported sleep quality, and the Reduced Morningness-Eveningness Questionnaire (rMEQ) to discriminate evening chronotypes (ETs), neither chronotype (NT), and morning chronotype (MT). Actigraphic monitoring was used to objectively evaluate sleep and circadian parameters. Patients classified as ET reported significantly higher scores in the re-experiencing domain, as well as poorer sleep quality, lower sleep efficiency, increased wake after sleep onset, and delayed mid-sleep point compared with both NT and MT (p-value ≤ 0.05). Moreover, ET presented significantly higher scores in the TALS-SR maladaptive coping domain than NT and lower relative amplitude than MT (p-value ≤ 0.05). Moreover, higher TALS-SR total symptomatic domains scores were significantly correlated with poor self-reported sleep quality. Regression analyses showed that the PSQI score maintained the association with the TALS total symptomatic domains scores after adjusting for potentially confounding factors (age and sex) and that no interaction effect was observed between the chronotype and the PSQI. Conclusions: This exploratory study suggests that patients with BD classified as ET showed significantly higher lifetime post-traumatic stress spectrum symptoms and more disrupted sleep and circadian rhythmicity with respect to other chronotypes. Moreover, poorer self-reported sleep quality was significantly associated with lifetime post-traumatic stress spectrum symptoms. Further studies are required to confirm our results and to evaluate whether targeting sleep disturbances and eveningness can mitigate post-traumatic stress symptoms in BD.
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Affiliation(s)
- Claudia Carmassi
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Francy Cruz-Sanabria
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, 56126 Pisa, Italy
| | - Davide Gravina
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Miriam Violi
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Chiara Bonelli
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Valerio Dell’Oste
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Virginia Pedrinelli
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Paolo Frumento
- Department of Political Sciences, University of Pisa, 56126 Pisa, Italy
| | - Ugo Faraguna
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, 56126 Pisa, Italy
- Department of Developmental Neuroscience, IRCCS Stella Maris Foundation, 56128 Pisa, Italy
| | - Liliana Dell’Osso
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
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Molu B, Tunç Tuna P, Yıldırım Keskin A, Tuna Hİ. Determination of Chronotype, Quality of Life, Sleep Quality, and Social Jetlag in Shift Working Nurses. JOURNAL OF TURKISH SLEEP MEDICINE 2023. [DOI: 10.4274/jtsm.galenos.2022.29484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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118
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Al-Rfooh OF, Khater W. The impact of chronotype on physical health, psychological health, and job performance among health care providers in acute care settings. INTERNATIONAL JOURNAL OF HEALTHCARE MANAGEMENT 2023. [DOI: 10.1080/20479700.2023.2177665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Omar Faisal Al-Rfooh
- Faculty of Nursing/Jordan University of Science and Technology, School of Nursing and Midwifery, Queen’s University Belfast, Belfast, UK
| | - Wejdan Khater
- Adult Health Nursing, Faculty of Nursing, Jordan University of Science and Technology, Amman, Jordan
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Liu H, Liang J, Wang K, Zhang T, Liu S, Luo J. Mood Status Response to Physical Activity and Its Influence on Performance: Are Chronotype and Exercise Timing Affect? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2822. [PMID: 36833520 PMCID: PMC9956388 DOI: 10.3390/ijerph20042822] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
PURPOSE It is well known that there is an obvious 24 h diurnal variation in the individual's mood state and physiological activity, and training at different times of the day may lead to different exercise performance and metabolic outcomes; however, the time-dependent effect of emotional state on physical activity and the influence of its circadian rhythm on exercise performance are still not comprehensively understood. Based on this, this study summarizes the rhythmic experimental research in the field of sport psychology, and it aims to provide the basis for coaches to optimize sports training scientifically and to improve the mental health of the related crowd to the greatest extent. METHODS The systematic review was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We searched the PubMed, Web of Science, Medline, and CNKI databases for relevant literature; the search scope was research before September 2022. RESULTS 13 studies comprising 382 subjects examined the effects of exercise timing on mood responses to exercise or the effects of circadian rhythms of mood on exercise performance, which included 3 RCTs and 10 Non-RCTs. The subjects included athletes (both training or retired), college students, and healthy adults. Two studies were designed for long-term exercise intervention (aerobic training and RISE) and the rest for acute intervention (CrossFit training, HIIT, aerobic combined with muscle conditioning training, constant power exhaustion training, and cycling) or physical function tests (RSA + BTV tests, 30 s Wingate test, muscle strength + CMJ + swimming performance test, RSSJA, shooting accuracy tests + 10 × 20 m dribbling sprint, 200 m time trials). All trials reported specific exercise timing; of these, 10 studies reported subjects' chronotypes, most commonly using the MEQ scale, while 1 recorded with the CSM. Mood responses were assessed with the POMS scale in 10 studies, while 3 other studies used the UMACL, PANAS, and GAS scales, respectively. CONCLUSION There was much inconsistency between the results, with subjects likely to be exposed to more sunlight (the main timing factor of the circadian rhythm) during early morning exercise, resulting in feeling more positive emotions; however, following a night's rest, delayed responses and poor functioning of the various organ systems of the human body may also lead to higher feelings of fatigue and negative emotions indirectly. Conversely, for athletes, their physical function tests are also more susceptible to the circadian rhythm of emotions, suggesting the importance of synchronizing them. In addition, night owls' emotional state during physical activity seems to be more susceptible to exercise timing than that of early birds. In order to achieve the best emotional state, it is suggested that night owls arrange courses in the afternoon or evening in future training.
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Affiliation(s)
| | | | | | | | | | - Jiong Luo
- Research Centre for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing 400715, China
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120
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Sert H, Üngören Y, Pelin M, Horzum MB. Relationship between chronotypes, personality traits, and phubbing levels in university students. BIOL RHYTHM RES 2023. [DOI: 10.1080/09291016.2023.2169653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Havva Sert
- Sakarya University, Faculty of Health Science, Department of Medical Nursing, Sakarya Üniversitesi Esentepe Kampüsü, Serdivan, Türkiye
| | - Yasin Üngören
- Sakarya University, Distance Education Research and Application Center, Sakarya Üniversitesi Esentepe Kampüsü, Serdivan, Türkiye
| | - Meryem Pelin
- Sakarya University, Institute of Health Science, Sakarya Üniversitesi Esentepe Kampüsü, Serdivan, Türkiye
| | - Mehmet Barış Horzum
- Sakarya University, Distance Education Research and Application Center, Sakarya Üniversitesi Esentepe Kampüsü, Serdivan, Türkiye
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Abstract
The restorative function of sleep is shaped by its duration, timing, continuity, subjective quality, and efficiency. Current sleep recommendations specify only nocturnal duration and have been largely derived from sleep self-reports that can be imprecise and miss relevant details. Sleep duration, preferred timing, and ability to withstand sleep deprivation are heritable traits whose expression may change with age and affect the optimal sleep prescription for an individual. Prevailing societal norms and circumstances related to work and relationships interact to influence sleep opportunity and quality. The value of allocating time for sleep is revealed by the impact of its restriction on behavior, functional brain imaging, sleep macrostructure, and late-life cognition. Augmentation of sleep slow oscillations and spindles have been proposed for enhancing sleep quality, but they inconsistently achieve their goal. Crafting bespoke sleep recommendations could benefit from large-scale, longitudinal collection of objective sleep data integrated with behavioral and self-reported data.
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Affiliation(s)
- Ruth L F Leong
- Centre for Sleep and Cognition, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; ,
| | - Michael W L Chee
- Centre for Sleep and Cognition, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; ,
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Circadian functioning and quality of life in substance use disorder patients with and without comorbid schizophrenia. Prog Neuropsychopharmacol Biol Psychiatry 2023; 120:110623. [PMID: 36029929 DOI: 10.1016/j.pnpbp.2022.110623] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/10/2022] [Accepted: 08/22/2022] [Indexed: 11/21/2022]
Abstract
Sleep disturbances are strongly linked with mental diseases such as substance use disorder (SUD) or schizophrenia (SZ) which can have a detrimental impact on quality of life (QOL), especially when both disorders are comorbid (dual disorder). In absence of studies about both circadian characteristics and QOL in patients with SUD and comorbid SZ (SUD + SZ), we examined a sample of 155 male under treatment, 75 with SUD + SZ and 80 only with SUD. Circadian functioning was evaluated by chronotype, social jet-lag and sleep quality (using the Pittsburgh Sleep Quality Index, PSQI), while the QOL was obtained by the World Health Organization's Quality of Life Questionnaire (WHOQOL)-BREF. SUD + SZ patients were more evening type than SUD, and this chronotype was linked to polydrug use in total sample and SUD + SZ group. We observed that the comorbidity did not lead to worse sleep quality in the SUD and SUD + SZ patients. QOL was poorer in SUD + SZ patients, who showed a negative association of Physical health, Psychological health and Social relationship with suicide attempts and severity of SZ. Lastly, patients with worse QOL also reported poorer sleep quality suggesting that treatment could include circadian adjustments along with a focused approach to lifestyle improvement.
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123
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Habitual Sleep Patterns and Chronic Sleep Problems in Relation to Sex, Age, and Circadian Preference in a Population-Based Sample of Norwegian Adults. Clocks Sleep 2023; 5:21-33. [PMID: 36648942 PMCID: PMC9844397 DOI: 10.3390/clockssleep5010003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/23/2022] [Accepted: 12/30/2022] [Indexed: 01/11/2023] Open
Abstract
Sleep patterns and problems vary in relation to internal (e.g., sex, age, circadian preference) and external (e.g., social structures) factors. The main aim of the present study was to describe habitual sleep patterns and chronic sleep problems in a population-based sample of Norwegian adults. During spring 2022, a sample of 1028 adults completed an online survey on sleep habits and problems. Response rate was 33.5%. The survey included the Munich ChronoType Questionnaire and items on circadian preference and chronic sleep problems. Mean workday sleep duration was 7:19 h (±199 min), and shorter in males (p = 0.035) and evening persons (p = 0.003). Short workday sleep duration (<6 h) was reported by 3.1% and was associated with evening preference (p = 0.001). Mean social jetlag was 0:51 h (±75 min), and longer in males (p = 0.036), younger adults (p < 0.001) and evening persons (p < 0.001). Long social jetlag (≥2 h) was reported by 11.2% and associated with younger age (p < 0.001) and evening preference (p < 0.001). Chronic sleep problems (≥3 months) were reported by 44.1%, and associated with female sex (p < 0.001) and evening preference (p = 0.002). Results underscore the importance of considering evening circadian preference as a risk factor for short workday sleep duration, long social jetlag and self-reported chronic sleep problems.
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Xu C, Xu H, Yang Z, Guo C. Regional shape alteration of left thalamus associated with late chronotype in young adults. Chronobiol Int 2023; 40:234-245. [PMID: 36597182 DOI: 10.1080/07420528.2022.2162916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Chronotype reflects individual differences in circadian rhythms and influences individual psychology and behavior. Previous studies found altered subcortical structures are closely related to individual chronotypes. However, these studies have been conducted mainly using voxel-based morphometry and traditional volume measurement methods with certain limitations. This study aimed to investigate subcortical aberrant volume and shape patterns in late chronotypes (LC) young adults compared to early chronotypes (EC) young adults. Magnetic resonance imaging (MRI) scanning and chronotype assessment were performed once for all participants, including 49 LC young adults and 49 matched EC young adults. The morningness and eveningness preferences were assessed using the Chronotype Questionnaire. A vertex-wise shape analysis was conducted to analyze structural MRI data. There were no significant differences in brain tissue volume and subcortical structural volume between groups. LC young adults showed significant regional shape atrophy in the left ventral posterior thalamus compared to EC individuals. A significant correlation was found between the regional shape atrophy of left ventral posterior thalamus and the score of Chronotype Questionnaire in LC young adults. Regional shape alteration of left thalamus was closely related to the chronotype, and LC may be a potential risk factor for sleep-related behavioral and mental problems in young adults. However, the predominantly female sample and the failure to investigate the effect of chronotype on the subcortical structure-function network are limitations of this study. Further prospective studies are needed to investigate the temporal characteristics of thalamic shape changes and consequent behavioral and psychiatric problems in adults with LC.
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Affiliation(s)
- Cheng Xu
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,School of Psychology and Cognitive Science, East China Normal University, Shanghai, China
| | - Hui Xu
- Peter Boris Centre for Addictions Research, McMaster University/St. Joseph's Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Zhenliang Yang
- Faculty of Psychology, Tianjin Normal University, Tianjin, China
| | - Chenguang Guo
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Mylonas V, Nikodelis T, Kollias I. Time of Day Influence on Postural Balance of Young and Older Men. Exp Aging Res 2023; 49:58-69. [PMID: 35243967 DOI: 10.1080/0361073x.2022.2033594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Many physiologic parameters fluctuate on a diurnal basis following the circadian rhythm function. The purpose of the study was to investigate if postural performance is interdependent of time of day and age. METHODS 19 young (22.63 ± 3.43 y.o.) and 19 older male adults (60.21 ± 3.67 y.o.) performed three balance tests (quiet stance with open and closed eyes and bipedal balance on a Togu ball) at 12:00 AM and at 12:00 PM. Time and frequency domain variables of the center of pressure were analyzed. RESULTS At eyes closed test, the younger had significant less distance traveled by the Center of Pressure (CoP) at night compared to day. At open eyes test, the younger had significant less CoP sway in the anterior-posterior (AP) axis at night compared to day. At Togu ball test the older showed increased peak-to-peak amplitude of CoP in both axes compared to younger. They also had lower frequency in the medial-lateral (ML) axis but higher in the AP axis compared to the younger. CONCLUSION Younger seem to function better at night. There is also an indication that the older are better at day. The results on unstable surface indicate different control strategies between the two groups.
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Affiliation(s)
- Vasileios Mylonas
- Biomechanics Lab, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Thomas Nikodelis
- Biomechanics Lab, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Iraklis Kollias
- Biomechanics Lab, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Association of chronotype, social jetlag, sleep duration and depressive symptoms in Chinese college students. J Affect Disord 2023; 320:735-741. [PMID: 36270445 DOI: 10.1016/j.jad.2022.10.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 09/30/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES To describe the prevalence of depressive symptoms among Chinese college students and examine the relationship between sleep and circadian rhythm disruption (SCRD) indicators (chronotype, social jetlag, sleep duration) and depressive symptoms. METHODS From April to May 2019, the College Student Behavior and Health Cohort Study was conducted among Chinese college students from 2 universities in Anhui and Jiangxi provinces. The current study used data from the third follow-up study. Questionnaire content includes socio-demographic and lifestyle information. Social jetlag and sleep duration were calculated by answering the question about sleep time. Chronotype was assessed by the Morning and Evening Questionnaire (MEQ-5). Depressive symptoms were evaluated by the Patient Health Questionnaire 9 (PHQ-9). A Chi-square test was used to examine the proportion depressive symptoms. Multinomial logistic regression model were used to explore the associations of circadian rhythm indicators with depressive symptoms. RESULTS The prevalence of mild depression, moderate and above depression was 18.8 % and 6.9 %. Evening types (E-types) and short sleep duration were significantly associated with depression. Stratified analysis indicated that E-types and social jetlag≥2 h were associated with mild depression (OR = 5.67, 95 % CI: 1.83-17.51), as well as stratified analysis indicated that E-types and sleep duration<8 h were associated with mild depression (OR = 5.10, 95 % CI: 1.88-13.87). CONCLUSIONS The findings suggest that depressive symptoms are more severe when multiple SCRD indicators are out of whack. The intervention programs of depressive symptoms should consider the context of the multidimensional aspects of Chinese college student sleep.
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Krueger B, Stutz B, Jankovic N, Alexy U, Kilanowski A, Libuda L, Buyken AE. The association of chronotype and social jet lag with body composition in German students: The role of physical activity behaviour and the impact of the pandemic lockdown. PLoS One 2023; 18:e0279620. [PMID: 36630357 PMCID: PMC9833523 DOI: 10.1371/journal.pone.0279620] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 12/12/2022] [Indexed: 01/12/2023] Open
Abstract
Young adults with a later chronotype are vulnerable for a discrepancy in sleep rhythm between work- and free days, called social jet lag (SJL). This study analysed (i) chronotype/SJL association with visceral fat/skeletal muscle mass, (ii) the attribution to physical activity behaviour, and (iii) chronotype-specific changes in physical activity behaviour in young adults during the Covid-19 pandemic lockdown. Chronotype and SJL were derived from the Munich-Chrono-Type-Questionnaire in 320 German students (age 18-25 years) from September 2019 to January 2020, 156 of these participated in an online follow-up survey in June 2020. Body composition was assessed by bioimpedance analysis at baseline. Multivariable linear regression analyses were used to relate chronotype/SJL to body composition; the contribution of self-reported physical activity was tested by mediation analysis. At baseline, a later chronotype and a larger SJL were associated with a higher visceral fat mass (P<0.05), this relation was notably mediated by the attention to physical activity (P<0.05). Chronotype (P = 0.02) but not SJL (P = 0.87) was inversely associated with skeletal muscle mass. During the pandemic lockdown, chronotype hardly changed, but SJL was reduced. Timing and physical activity behaviour remained in most participants and changes were unrelated to chronotype (all P>0.07). A later chronotype/higher SJL may increase the risk of a higher visceral fat mass even in this relatively healthy sample, which may be partly due to their physical activity behaviour. Despite a reduction in SJL during the pandemic lockdown, later chronotypes did not change their physical activity behaviour more than earlier chronotypes.
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Affiliation(s)
- Bettina Krueger
- Department of Sports and Health, Institute of Nutrition, Consumption and Health, Paderborn University, Paderborn, Germany
| | - Bianca Stutz
- Department of Sports and Health, Institute of Nutrition, Consumption and Health, Paderborn University, Paderborn, Germany
| | - Nicole Jankovic
- Institute of Nutritional and Food Sciences (IEL), Bonn University, Bonn, Germany
| | - Ute Alexy
- Institute of Nutritional and Food Sciences (IEL), Bonn University, Bonn, Germany
| | - Anna Kilanowski
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Lars Libuda
- Department of Sports and Health, Institute of Nutrition, Consumption and Health, Paderborn University, Paderborn, Germany
| | - Anette E. Buyken
- Department of Sports and Health, Institute of Nutrition, Consumption and Health, Paderborn University, Paderborn, Germany
- * E-mail:
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128
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Nicholson L, Mullan B, Liddelow C. Investigating the role of morningness/eveningness in physical activity engagement. Health Psychol Behav Med 2022; 10:1003-1019. [PMID: 36277117 PMCID: PMC9586684 DOI: 10.1080/21642850.2022.2136183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Objective Despite being aware of the positive health-related outcomes of physical activity, many people remain inactive. The aim of this study is to apply a combination of constructs from the health action process approach and self-determination theory, as well as habit and morningness/eveningness, to predict physical activity engagement. Methods A prospective design was used to collect data from 136 participants (16–64 years old), at two-time points, one week apart. The sample consisted of 99 women, 36 men and 1 individual who identified as non-binary. Participants preferred time-of-day was measured using the Morningness-Eveningness Stability Scale (MESSi), while physical activity engagement was measured using the International Physical Activity Questionnaire (short-version). Two hierarchical, multiple regressions were conducted, to predict motivation to engage and to directly predict physical activity engagement. Furthermore, a mediation analysis was conducted to determine the effect of planning on physical activity engagement. Results Results showed that younger individuals and those with greater self-efficacy were more motivated to engage while planning directly predicted physical activity engagement. However, morningness/eveningness did not significantly predict engagement. Additionally, planning was found to mediate the motivation-engagement relationship. Conclusion This study demonstrates how planning influences individuals’ physical activity engagement, as well as the role self-efficacy and age play in their motivation to engage. Even though morningness/eveningness was not an important predictor, behaviour change techniques related to action planning and the use of multi-component approaches to behaviour change, could be used in interventions focused on increasing individuals’ physical activity engagement.
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Affiliation(s)
- Lauren Nicholson
- School of Population Health, Curtin University, Perth, Australia
- Enable Institute, Curtin University, Perth, Australia
| | - Barbara Mullan
- School of Population Health, Curtin University, Perth, Australia
- Enable Institute, Curtin University, Perth, Australia
- WACPRU, Curtin University, Perth, Australia
| | - Caitlin Liddelow
- Global Alliance for Mental Health and Sport, School of Psychology, University of Wollongong, Wollongong, Australia
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129
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Nikkola V, Huotari-Orava R, Joronen H, Grönroos M, Kautiainen H, Ylianttila L, Snellman E, Partonen T. Melatonin immunoreactivity of epidermal skin is higher in the evening than morning but does not account for erythema sensitivity. Chronobiol Int 2022; 40:132-144. [PMID: 36576151 DOI: 10.1080/07420528.2022.2157733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The skin is a site of melatonin synthesis, and melatonin has a role in protecting against ultraviolet radiation-induced damage. Ultraviolet B (UVB) induced erythema seems to vary between morning and evening. We investigated whether epidermal melatonin immunoreactivities in the morning differed from those in the evening, and whether UVB-induced erythema was associated with these melatonin immunoreactivities in healthy volunteers. Erythema sensitivity of the skin was determined in the morning and in the evening by scoring the Minimal Erythema Dose and quantifying the erythema index (EI). We took biopsies from the non-UVB-exposed skin of healthy volunteers (n = 39) in the morning and in the evening to study melatonin immunoreactivity with immunohistochemistry (IHC). In the IHC staining, there was more melatonin immunoreactivity in the evening than in the morning (p < .001). Erythema was more pronounced in the evening than in the morning irradiated skin (p < .001). The graded amount of melatonin immunoreactivity in the samples was not associated with the EI. We discovered melatonin immunoreactivity of the non-irradiated skin to vary diurnally. However, endogenous skin melatonin does not seem to be the reason why NB-UVB induces more erythema in the evening than in the morning.
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Affiliation(s)
- Veera Nikkola
- Faculty of Medicine and Health Technology, Department of Dermatology and Venereology, Tampere University, Tampere, Finland.,Department of Dermatology and Allergology, Tampere University Hospital, Tampere, Finland.,Department of Dermatology and Allergology, Päijät-Häme Social and Health Care Group, Lahti, Finland
| | - Riitta Huotari-Orava
- Faculty of Medicine and Health Technology, Department of Pathology and FIMLAB, Tampere University, Tampere, Finland
| | - Heli Joronen
- Faculty of Medicine and Health Technology, Department of Dermatology and Venereology, Tampere University, Tampere, Finland.,Department of Dermatology and Allergology, Tampere University Hospital, Tampere, Finland.,Department of Dermatology and Allergology, Päijät-Häme Social and Health Care Group, Lahti, Finland
| | - Mari Grönroos
- Faculty of Medicine and Health Technology, Department of Dermatology and Venereology, Tampere University, Tampere, Finland.,Department of Dermatology and Allergology, Päijät-Häme Social and Health Care Group, Lahti, Finland
| | - Hannu Kautiainen
- Unit of Primary Health Care, Department of General Practice, Helsinki University Central Hospital, University of Helsinki, Helsinki, Finland.,Unit of Primary Health Care, Kuopio University, Kuopio, Finland
| | - Lasse Ylianttila
- Non-Ionizing Radiation Surveillance, Radiation and Nuclear Safety Authority (STUK), Helsinki, Finland
| | - Erna Snellman
- Faculty of Medicine and Health Technology, Department of Dermatology and Venereology, Tampere University, Tampere, Finland.,Department of Dermatology and Allergology, Tampere University Hospital, Tampere, Finland.,Department of Dermatology, University of Turku, Turku, Finland
| | - Timo Partonen
- Department of Public Health, Finnish Institute for Health and Welfare (THL), Helsinki, Finland
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130
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Zhu Y, Huang J, Yang M. Association between Chronotype and Sleep Quality among Chinese College Students: The Role of Bedtime Procrastination and Sleep Hygiene Awareness. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:ijerph20010197. [PMID: 36612519 PMCID: PMC9820042 DOI: 10.3390/ijerph20010197] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 05/31/2023]
Abstract
Chronotype and sleep quality have been shown to play significant roles in influencing people's physical and mental health. The current study focuses on examining the relationship between chronotype and sleep quality among Chinese college students and exploring the mediating role of bedtime procrastination and the moderating role of sleep hygiene awareness. A sample of 2822 college students (female = 71.4%) aged between 17 and 29 years (M = 19.77, SD = 1.41) were included and completed the measures of the Pittsburgh Sleep Quality Index (PSQI), Morningness-Eveningness Questionnaire (MEQ), Bedtime Procrastination Scale (BPS) and Sleep Hygiene Awareness Scale (SHAS). The results showed that evening-type students reported the lowest sleep quality and highest levels of bedtime procrastination. In contrast, the highest sleep quality and lowest levels of bedtime procrastination were shown by morning-type, exhibiting the neither-type students' intermediate chronotype. Bedtime procrastination partially mediated the relationship between chronotype and sleep quality. Furthermore, sleep hygiene awareness moderated the direct effect of chronotype on sleep quality and the effect of chronotype in the path from chronotype to bedtime procrastination. Specifically, higher levels of sleep hygiene awareness could buffer the adverse effect of chronotype on self-reported sleep quality but bolstered the negative effect of chronotype on bedtime procrastination. Our results suggest that individuals with an evening preference are inclined to postpone their bedtime and further experience poorer sleep quality at night. Sleep hygiene awareness may serve as a protective factor for poor nocturnal sleep. Overall, the findings highlight the importance of reducing bedtime procrastination and improving sleep hygiene awareness in the interventions designed to help college students to own a better sleep quality, especially for those with evening chronotypes.
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Affiliation(s)
- Yingying Zhu
- Key Research Base of Humanities and Social Sciences of the Ministry of Education, Academy of Psychology and Behavior, Tianjin Normal University, Tianjin 300387, China
- Faculty of Psychology, Tianjin Normal University, Tianjin 300387, China
- Tianjin Social Science Laboratory of Students’ Mental Development and Learning, Tianjin 300387, China
| | - Jiahao Huang
- Faculty of Psychology, Tianjin Normal University, Tianjin 300387, China
| | - Minqi Yang
- School of Education, Zhengzhou University, Zhengzhou 450001, China
- School of Marxism, Zhengzhou University, Zhengzhou 450001, China
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131
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van der Merwe C, Münch M, Kruger R. Chronotype Differences in Body Composition, Dietary Intake and Eating Behavior Outcomes: A Scoping Systematic Review. Adv Nutr 2022; 13:2357-2405. [PMID: 36041181 PMCID: PMC9776742 DOI: 10.1093/advances/nmac093] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/03/2022] [Accepted: 08/23/2022] [Indexed: 01/29/2023] Open
Abstract
The timing and nutritional composition of food intake are important zeitgebers for the biological clocks in humans. Thus, eating at an inappropriate time (e.g., during the night) may have a desynchronizing effect on the biological clocks and, in the long term, may result in adverse health outcomes (e.g., weight gain, obesity, and poor metabolic function). Being a very late or early chronotype not only determines preferred sleep and wake times but may also influence subsequent mealtimes, which may affect the circadian timing system. In recent years, an increased number of studies have examined the relation between chronotype and health outcomes, with a main focus on absolute food intake and metabolic markers and, to a lesser extent, on dietary intake distribution and eating behavior. Therefore, this review aimed to systematically determine whether chronotype indirectly affects eating behaviors, dietary intake (timing, choice, nutrients), and biomarkers leading to body composition outcomes in healthy adults. A systematic literature search on electronic databases (PubMed, CINAHL, MEDLINE, SCOPUS, Cochrane library) was performed (International Prospective Register of Systematic Reviews number: CRD42020219754). Only studies that included healthy adults (aged >18 y), classified according to chronotype and body composition profiles, using outcomes of dietary intake, eating behavior, and/or biomarkers, were considered. Of 4404 articles, 24 met the inclusion criteria. The results revealed that late [evening type (ET)] compared with early [morning type (MT)] chronotypes were more likely to be overweight/obese with poorer metabolic health. Both MT and ET had similar energy and macronutrient intakes, consuming food during their preferred sleep-wake timing: later for ET than MT. Most of the energy and macronutrient intakes were distributed toward nighttime for ET and exacerbated by unhealthy eating behaviors and unfavorable dietary intakes. These findings from our systematic review give further insight why higher rates of overweight/obesity and unhealthier metabolic biomarkers are more likely to occur in ET.
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Affiliation(s)
- Carlien van der Merwe
- School of Sport, Exercise and Nutrition, Massey University East Precinct, Albany, Auckland, New Zealand
| | - Mirjam Münch
- Centre for Chronobiology, Transfaculty Research Platform Molecular and Cognitive Neurosciences, Psychiatric Hospital of the University of Basel, Basel, Switzerland
- Research Centre for Hauora and Health, Massey University, Wellington, New Zealand
| | - Rozanne Kruger
- School of Sport, Exercise and Nutrition, Massey University East Precinct, Albany, Auckland, New Zealand
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132
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Teixeira GP, Guimarães KC, Soares AGNS, Marqueze EC, Moreno CRC, Mota MC, Crispim CA. Role of chronotype in dietary intake, meal timing, and obesity: a systematic review. Nutr Rev 2022; 81:75-90. [PMID: 35771674 DOI: 10.1093/nutrit/nuac044] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
CONTEXT Recent studies show that dietary habits and obesity seem to be influenced by chronotype, which reflects an individual's preference for the timing of sleeping, eating, and activity in a 24-hour period. OBJECTIVE This review aimed to analyze the association of chronotype with dietary habits, namely energy and macronutrient intakes, meal timing, and eating patterns, as well as with obesity. DATA SOURCES PubMed/MEDLINE, LILACS, and Google Scholar databases were searched between 2004 and 2020. Study selection was performed by 2 authors independently; disagreements on eligibility of articles were resolved by a third author. After assessment of 12 060 abstracts, 43 studies (21 articles on obesity; 13 on food consumption, meal timing, and eating patterns; and 9 that addressed both obesity and dietary behavior) were included. DATA EXTRACTION A standard form was used to extract study design, country, number of participants, method of chronotype determination, and main findings. DATA ANALYSIS Approximately 95% of included studies showed an association between eveningness and at least 1 unhealthy eating habit. Morningness was associated with regular consumption of fresh and minimally processed foods. In addition, about 47% of studies showed a higher association between late types and obesity. CONCLUSION Late types are more likely to present unhealthy eating habits, such as eating late at night, skipping breakfast often, and eating processed/ultraprocessed foods, while early types are more likely to have healthy and protective habits, such as eating early and eating predominantly fresh/minimally processed foods. Intermediate types tend to have a pattern of health and eating more similar to early types than to late types. Late types are also more likely to present higher weight and body mass index than early or intermediate types. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42021256078.
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Affiliation(s)
- Gabriela P Teixeira
- are with the Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Kisian C Guimarães
- are with the Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Ana Gabriela N S Soares
- are with the Nutrition Course, Faculty of Medicine, Federal University of Uberlândia, Minas Gerais Uberlândia, Brazil
| | - Elaine C Marqueze
- are with the School of Public Health, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Cláudia R C Moreno
- are with the School of Public Health, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Maria C Mota
- are with the Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Cibele A Crispim
- are with the Graduate Program in Health Sciences, Faculty of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.,are with the Nutrition Course, Faculty of Medicine, Federal University of Uberlândia, Minas Gerais Uberlândia, Brazil
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133
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Carciofo R. Morning affect, eveningness, and amplitude distinctness: Associations with behavioural indicators of conscientiousness. Chronobiol Int 2022; 39:1590-1600. [PMID: 36278268 DOI: 10.1080/07420528.2022.2134787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Morningness is associated with well-being, better sleep quality, and more conscientiousness, while eveningness is associated with negative emotionality, poorer sleep quality, and less conscientiousness. The current study aimed to further understanding of associations with conscientiousness by assessing specific behavioural indicators of conscientiousness, morningness-eveningness, and also the Morning Affect and Distinctness (amplitude of diurnal variation) aspects of circadian functioning. A survey of Chinese university students (N = 369, aged 18-30, mean = 19.48, SD = 1.922; 108 males, 261 females), included the Morningness-Eveningness-Stability-Scale, measures of conscientiousness, mindfulness, life satisfaction, aspects of sleep, and the Behavioural Indicators of Conscientiousness (BIC) scale. Morningness and Morning Affect were positively correlated with life satisfaction, mindfulness, better sleep quality, more conscientiousness, and with BIC including Hardworking, Self-control, and Punctuality. Distinctness showed negative correlations with these variables. Negative correlations between Eveningness and conscientiousness, and the BIC subscales of Hardworking and Cleanliness were no longer significant after controlling for Morning Affect. Mediation analysis showed that the associations between Eveningness and conscientiousness/BIC were mediated by Morning Affect. These results extend previous research by showing associations between circadian functioning and specific behavioural indicators of conscientiousness, and suggest that low Morning Affect may provide a mechanism for the relationship between Eveningness and conscientiousness.
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Affiliation(s)
- Richard Carciofo
- School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
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134
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Manková D, Novák J, Sedlak P, Andrlíková Farkova E. The circadian preferences in the context of sociodemographic indicators and lifestyle. Chronobiol Int 2022; 39:1574-1589. [PMID: 36342233 DOI: 10.1080/07420528.2022.2134786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Circadian preferences are frequently used as a synonym for chronotype. Both terms are based on different principles and are measured by a variant questionnaire. We focused on circadian preferences, delimited as an individual preference for the timing of various activities, and their relationship to the selected sociodemographic factors. All participants (n = 2068) filled out online questionnaires including MEQ, MCTQ, and sociodemographic information (age, sex, place of residence, marital status, childcare, education, financial security, physical and mental health). Although the concept of chronotype and circadian preference differ, the mutual correlation was high. Our results of the observed variables are similar to other studies. We revealed evening preference is related to a higher probability of living in a big city, having a single life, a higher risk of smoking, worse health status, and worse financial security. We observed a higher social jet lag among them. Our research complies with previous studies, which found that in some areas, people with evening preferences evince worse results. Due to the evening preference, these people are at a disadvantage, and the society's setting for morning operations can lead to a deepening of these differences. We recommend further research, which would focus on the practical application of results to the everyday life of participants to create preventive programs aimed at reducing the negative impact of evening preferences on life.
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Affiliation(s)
- Denisa Manková
- Sleep and Chronobiology Research Centre, National Institute of Mental Health, Klecany, Czech Republic
| | - Jan Novák
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
| | - Petr Sedlak
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
| | - Eva Andrlíková Farkova
- Sleep and Chronobiology Research Centre, National Institute of Mental Health, Klecany, Czech Republic
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135
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Klerman EB, Brager A, Carskadon MA, Depner CM, Foster R, Goel N, Harrington M, Holloway PM, Knauert MP, LeBourgeois MK, Lipton J, Merrow M, Montagnese S, Ning M, Ray D, Scheer FAJL, Shea SA, Skene DJ, Spies C, Staels B, St‐Onge M, Tiedt S, Zee PC, Burgess HJ. Keeping an eye on circadian time in clinical research and medicine. Clin Transl Med 2022; 12:e1131. [PMID: 36567263 PMCID: PMC9790849 DOI: 10.1002/ctm2.1131] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Daily rhythms are observed in humans and almost all other organisms. Most of these observed rhythms reflect both underlying endogenous circadian rhythms and evoked responses from behaviours such as sleep/wake, eating/fasting, rest/activity, posture changes and exercise. For many research and clinical purposes, it is important to understand the contribution of the endogenous circadian component to these observed rhythms. CONTENT The goal of this manuscript is to provide guidance on best practices in measuring metrics of endogenous circadian rhythms in humans and promote the inclusion of circadian rhythms assessments in studies of health and disease. Circadian rhythms affect all aspects of physiology. By specifying minimal experimental conditions for studies, we aim to improve the quality, reliability and interpretability of research into circadian and daily (i.e., time-of-day) rhythms and facilitate the interpretation of clinical and translational findings within the context of human circadian rhythms. We describe protocols, variables and analyses commonly used for studying human daily rhythms, including how to assess the relative contributions of the endogenous circadian system and other daily patterns in behaviours or the environment. We conclude with recommendations for protocols, variables, analyses, definitions and examples of circadian terminology. CONCLUSION Although circadian rhythms and daily effects on health outcomes can be challenging to distinguish in practice, this distinction may be important in many clinical settings. Identifying and targeting the appropriate underlying (patho)physiology is a medical goal. This review provides methods for identifying circadian effects to aid in the interpretation of published work and the inclusion of circadian factors in clinical research and practice.
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Affiliation(s)
- Elizabeth B. Klerman
- Department of NeurologyMassachusetts General Hospital, Brigham and Women's HospitalBostonMassachusettsUSA
- Division of Sleep MedicineHarvard Medical SchoolBostonMassachusettsUSA
| | - Allison Brager
- PlansAnalysis, and FuturesJohn F. Kennedy Special Warfare Center and SchoolFort BraggNorth CarolinaUSA
| | - Mary A. Carskadon
- Alpert Medical School of Brown UniversityDepartment of Psychiatry and Human BehaviorEP Bradley HospitalChronobiology and Sleep ResearchProvidenceRhode IslandUSA
| | | | - Russell Foster
- Sir Jules Thorn Sleep and Circadian Neuroscience InstituteNuffield Department of Clinical NeurosciencesUniversity of OxfordOxfordUK
| | - Namni Goel
- Biological Rhythms Research LaboratoryDepartment of Psychiatry and Behavioral SciencesRush University Medical CenterChicagoIllinoisUSA
| | - Mary Harrington
- Neuroscience ProgramSmith CollegeNorthamptonMassachusettsUSA
| | | | - Melissa P. Knauert
- Section of PulmonaryCritical Care, and Sleep MedicineDepartment of Internal MedicineYale School of MedicineNew HavenConnecticutUSA
| | - Monique K. LeBourgeois
- Sleep and Development LaboratoryDepartment of Integrative PhysiologyUniversity of Colorado BoulderBoulderColoradoUSA
| | - Jonathan Lipton
- Boston Children's Hospital and Kirby Neurobiology CenterBostonMassachusettsUSA
| | - Martha Merrow
- Institute of Medical PsychologyFaculty of MedicineLMUMunichGermany
| | - Sara Montagnese
- Department of MedicineUniversity of PadovaPadovaItaly
- ChronobiologyFaculty of Health and Medical SciencesUniversity of SurreyGuildfordUK
| | - Mingming Ning
- Clinical Proteomics Research Center and Cardio‐Neurology DivisionMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - David Ray
- NIHR Oxford Biomedical Research CentreJohn Radcliffe HospitalOxfordUK
- Oxford Centre for DiabetesEndocrinology and MetabolismUniversity of OxfordOxfordUK
| | - Frank A. J. L. Scheer
- Division of Sleep MedicineHarvard Medical SchoolBostonMassachusettsUSA
- Medical Chronobiology ProgramDivision of Sleep and Circadian DisordersDepartments of Medicine and NeurologyBrigham and Women's HospitalBostonMassachusettsUSA
| | - Steven A. Shea
- Oregon Institute of Occupational Health SciencesOregon Health and Science UniversityPortlandOregonUSA
| | - Debra J. Skene
- ChronobiologyFaculty of Health and Medical SciencesUniversity of SurreyGuildfordUK
| | - Claudia Spies
- Department of Anesthesiology and Intensive Care MedicineCharité – Universitaetsmedizin BerlinBerlinGermany
| | - Bart Staels
- UnivLilleInsermCHU LilleInstitut Pasteur de LilleU1011‐EGIDLilleFrance
| | - Marie‐Pierre St‐Onge
- Division of General Medicine and Center of Excellence for Sleep and Circadian ResearchDepartment of MedicineColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Steffen Tiedt
- Institute for Stroke and Dementia ResearchUniversity HospitalLMUMunichGermany
| | - Phyllis C. Zee
- Center for Circadian and Sleep MedicineDivision of Sleep MedicineNorthwestern University Feinberg School of MedicineChicagoIllinoisUSA
| | - Helen J. Burgess
- Sleep and Circadian Research LaboratoryDepartment of PsychiatryUniversity of MichiganAnn ArborMichiganUSA
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136
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Low circadian amplitude and delayed phase are linked to seasonal affective disorder (SAD). JOURNAL OF AFFECTIVE DISORDERS REPORTS 2022. [DOI: 10.1016/j.jadr.2022.100395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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137
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Messman BA, Wiley JF, Yap Y, Tung YC, Almeida IM, Dietch JR, Taylor DJ, Slavish DC. How much does sleep vary from night-to-night? A quantitative summary of intraindividual variability in sleep by age, gender, and racial/ethnic identity across eight-pooled datasets. J Sleep Res 2022; 31:e13680. [PMID: 35811092 PMCID: PMC9649840 DOI: 10.1111/jsr.13680] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 11/26/2022]
Abstract
Habitual sleep duration and efficiency vary widely by age, gender, and racial/ethnic identity. Despite growing research on the importance of night-to-night, intraindividual variability (IIV) in sleep, few studies have examined demographic differences in sleep IIV. The present study describes typical sleep IIV overall and by demographics among healthy sleepers. Eight datasets of healthy sleepers (N = 2,404; 26,121 total days of sleep data) were synthesised to examine age, gender, and racial/ethnic identity differences in sleep IIV measured via diaries, actigraphy, and electroencephalography (EEG). Sleep IIV estimates included the intraindividual standard deviation (iSD), root mean square of successive differences (RMSSD), coefficient of variation (CV), and a validated Bayesian Variability Model (BVM). There was substantial IIV in sleep across measurement types (diary, actigraphy, EEG) for both sleep duration (iSD: 85.80 [diary], 77.41 [actigraphy], 67.04 [EEG] minutes; RMSSD: 118.91, 108.89, 91.93 minutes; CV: 19.19%, 19.11%, 18.57%; BVM: 60.60, 58.20, 48.60 minutes) and sleep efficiency (iSD: 5.18% [diary], 5.22% [actigraphy], 6.46% [EEG]; RMSSD: 7.01%, 7.08%, 8.44%; CV: 5.80%, 6.27%, 8.14%; BVM: 3.40%, 3.58%, 4.16%). Younger adults had more diary and actigraphy sleep duration IIV. Gender differences were inconsistent. White and non-Hispanic/Latinx adults had less IIV in sleep duration and efficiency compared to racial/ethnic minority groups. Even among healthy sleepers, sleep varies widely from night-to-night. Like mean sleep, there also may be disparities in IIV in sleep by demographic characteristics. Study results help characterise normative values of sleep IIV in healthy sleepers.
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Affiliation(s)
- Brett A. Messman
- Department of Psychology, University of North Texas, Denton, TX, USA
| | - Joshua F. Wiley
- Turner Institute for Brain and Mental Health, Psychological Sciences, Monash University, Clayton, VIC, Australia
| | - Yang Yap
- Turner Institute for Brain and Mental Health, Psychological Sciences, Monash University, Clayton, VIC, Australia
| | - Yan Chi Tung
- Turner Institute for Brain and Mental Health, Psychological Sciences, Monash University, Clayton, VIC, Australia
| | - Isamar M. Almeida
- Department of Psychology, University of North Texas, Denton, TX, USA
| | - Jessica R. Dietch
- Department of Psychology, University of North Texas, Denton, TX, USA
- School of Psychological Science, Oregon State University, Corvallis, OR, USA
| | - Daniel J. Taylor
- Department of Psychology, University of North Texas, Denton, TX, USA
- Department of Psychology, University of Arizona, Tucson, AZ, USA
| | - Danica C. Slavish
- Department of Psychology, University of North Texas, Denton, TX, USA
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138
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Chrononutrition-When We Eat Is of the Essence in Tackling Obesity. Nutrients 2022; 14:nu14235080. [PMID: 36501110 PMCID: PMC9739590 DOI: 10.3390/nu14235080] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022] Open
Abstract
Obesity is a chronic and relapsing public health problem with an extensive list of associated comorbidities. The worldwide prevalence of obesity has nearly tripled over the last five decades and continues to pose a serious threat to wider society and the wellbeing of future generations. The pathogenesis of obesity is complex but diet plays a key role in the onset and progression of the disease. The human diet has changed drastically across the globe, with an estimate that approximately 72% of the calories consumed today come from foods that were not part of our ancestral diets and are not compatible with our metabolism. Additionally, multiple nutrient-independent factors, e.g., cost, accessibility, behaviours, culture, education, work commitments, knowledge and societal set-up, influence our food choices and eating patterns. Much research has been focused on 'what to eat' or 'how much to eat' to reduce the obesity burden, but increasingly evidence indicates that 'when to eat' is fundamental to human metabolism. Aligning feeding patterns to the 24-h circadian clock that regulates a wide range of physiological and behavioural processes has multiple health-promoting effects with anti-obesity being a major part. This article explores the current understanding of the interactions between the body clocks, bioactive dietary components and the less appreciated role of meal timings in energy homeostasis and obesity.
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139
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Rutters F, Nefs G. Sleep and Circadian Rhythm Disturbances in Diabetes: A Narrative Review. Diabetes Metab Syndr Obes 2022; 15:3627-3637. [PMID: 36439294 PMCID: PMC9694979 DOI: 10.2147/dmso.s354026] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022] Open
Abstract
Sleep and circadian rhythm disturbances are less-known risk factors for the development and suboptimal outcomes of diabetes. The goal of this narrative review is to highlight the importance of sleep and circadian rhythm disturbances in the development and outcomes of type 1 diabetes (T1D) and type 2 diabetes (T2D), assess current treatment options and the possible mediating mechanisms. We performed a literature search using PubMed and selected relevant English and Dutch papers. Disturbances of sleep and circadian rhythm are common in people with diabetes. They are associated with an increased risk of developing T2D as well as with suboptimal diabetes outcomes (including higher HbA1c levels and reduced quality of life) for T1D and T2D. Preliminary data suggest that treatment of sleep and circadian rhythm disturbances could improve diabetes outcomes in people with T1D and T2D. Finally, the association with medical parameters appears to be mediated by disturbance in hormones, and by suboptimal self-care including forgetting or postponing glucose monitoring or medication use as well as higher consumption of high fat/high sugary foods. Diabetes may also disturb sleep, for example through nocturnal hypoglycemia and nocturia. We concluded that sleep and circadian rhythm disturbances are closely linked with diabetes. More attention to sleep in regular diabetes care is warranted, while further research is needed on treatment of sleep and circadian rhythm disturbances in the prevention of diabetes and its suboptimal outcomes.
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Affiliation(s)
- Femke Rutters
- Department of Epidemiology and Data Science, Amsterdam UMC, location VUmc, Amsterdam, the Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Giesje Nefs
- Department of Medical Psychology, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, the Netherlands
- Diabeter, Center for Type 1 Diabetes Care and Research, Rotterdam, the Netherlands
- Department of Medical and Clinical Psychology, CoRPS - Center of Research on Psychological Disorders and Somatic Diseases, Tilburg University, Tilburg, the Netherlands
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140
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Jia Y, Wu Y, Jin T, Zhang L. How is circadian preference associated with cyber-victimization? A moderated mediation model of hostile recognition and online self-disclosure in Chinese early adolescent students. Front Psychol 2022; 13:970073. [DOI: 10.3389/fpsyg.2022.970073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 10/24/2022] [Indexed: 11/17/2022] Open
Abstract
Although circadian preference is widely accepted to be a risk factor in the increase of adolescents’ negative experiences, little is known about its association with cyber-victimization. The current study sought to examine whether eveningness was significantly related to adolescents’ negative experiences. We further examined in-victimization events and whether hostile recognition and online self-disclosure played a vital role in eveningness and adolescents’ cyber-victimization. Study participants included 583 adolescents from four middle schools in China who completed questionnaires regarding their circadian preference, hostile recognition, online self-disclosure, and experience with cyber-victimization. Results indicated that adolescents with a high level of eveningness were more likely to experience cyber-victimization. Hostile recognition significantly mediated the relationship between eveningness and adolescents’ cyber-victimization. Furthermore, online self-disclosure moderated the indirect relationship between eveningness and cyber-victimization. Specifically, the paths from eveningness to hostile recognition and from hostile recognition to cyber-victimization became strengthened when adolescents experienced high levels of online self-disclosure. The results imply that researchers should pay more attention to remote factors, such as adolescents’ circadian preference and their relationship with cyber-victimization, to help them adapt to school requirements and reduce the frequency of victimization.
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141
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Dong XX, Liang G, Li DL, Liu MX, Yin ZJ, Li YZ, Zhang T, Pan CW. Association between parental control and depressive symptoms among college freshmen in China: The chain mediating role of chronotype and sleep quality. J Affect Disord 2022; 317:256-264. [PMID: 36055527 DOI: 10.1016/j.jad.2022.08.091] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND College freshmen tend to have more psychological and behavioral problems compared with other populations, especially depressive symptoms. Perceived parental control has been proved to play a significant role in mental health among children and adolescents. Based on the theoretical and empirical research of chronotype and sleep quality, this study constructed a chain mediating model to examine whether they mediated the relationship between parental control and depressive symptoms among Chinese college freshmen. METHODS A total of 2014 college freshmen from Dali University were recruited to participate in this study and completed self-report Parental Bonding Instrument (PBI), Morningness-Eveningness Questionnaire (MEQ), Pittsburgh Sleep Quality Index (PSQI) and Self-Rating Depression Scale (SDS). PROCESS 3.5 for SPSS was applied to determine the chain mediating effect of chronotype and sleep quality between parental control and depressive symptoms. RESULTS College freshmen with depressive symptoms have higher levels of parental control and worse subjective sleep quality than normal population (all p < 0.001). All study variables are correlated with each other, while chronotype has no significant association with depressive symptoms (r = -0.03, p > 0.05). Both maternal and paternal control have a direct link with depressive symptoms (β = 0.86, p < 0.001; β = 0.88, p < 0.001). Parental control could affect depressive symptoms via the independent mediating effect of sleep quality and the chain mediating effect of chronotype and sleep quality. The total indirect effects of maternal and paternal control on depressive symptoms are 0.93 and 0.94, respectively. CONCLUSIONS Chronotype and sleep quality could mediate the association between parental control and depressive symptoms.
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Affiliation(s)
- Xing-Xuan Dong
- School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Gang Liang
- Department of Ophthalmology, the Affiliated Hospital of Yunnan University, Kunming, China
| | - Dan-Lin Li
- School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Min-Xin Liu
- School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Zhi-Jian Yin
- Department of Ophthalmology, the First Affiliated Hospital of Dali University, Dali, China
| | - Yue-Zu Li
- Department of Ophthalmology, the Affiliated Hospital of Yunnan University, Kunming, China
| | - Tianyang Zhang
- School of Public Health, Medical College of Soochow University, Suzhou, China; Research Center for Psychology and Behavioral Sciences, Soochow University, Suzhou, China.
| | - Chen-Wei Pan
- School of Public Health, Medical College of Soochow University, Suzhou, China.
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142
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Insomnia symptoms do, but chronotype does not show relevant associations with mental well-being and negative dream experiences. CURRENT PSYCHOLOGY 2022. [DOI: 10.1007/s12144-022-03901-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Chronotypes are diversely associated with sleep quality and mental health. Eveningness is generally associated with lower sleep quality and with increased risk for mental health complaints. Along with insomnia symptoms, frequent dysphoric dreams might be key elements of disturbed sleep, and may also indicate psychological imbalance. Our cross-sectional online study aimed to examine whether eveningness can be considered as an independent risk factor of poor mental well-being or whether this association is explained by symptoms of insomnia. Secondly, we examined the associations between eveningness and frequent dysphoric dreaming taking into account the influence of mental well-being and insomnia complaints. Method: We released an online survey with Morningness-Eveningness Questionnaire, Athens Insomnia Scale, General Mental Health, and frequency of dysphoric dreaming: nightmares and bad dreams separately. We analyzed the data of 2077 participants (MAGE = 28.5, SD = 9.6). Eveningness showed a weak but independent association with mental well-being. Additional analyses showed no signs of associations between eveningness and dysphoric dreaming, such as nightmares and bad dreams. The frequency of bad dreams was associated with insomnia complaints and mental well-being, but nightmare frequency was only linked to insomnia symptoms, but not to mental well-being. Insomnia complaints emerged as a more robust factor in poorer mental well-being than the eveningness preference. Eveningness was not associated with dysphoric dreaming. Restoring insomnia might be essential in individuals at risk for mental health complaints.
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143
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Adachi M, Nagaura Y, Eto H, Kondo H, Kato C. The impact of sleep–wake problems on health-related quality of life among Japanese nursing college students: a cross sectional survey. Health Qual Life Outcomes 2022; 20:150. [PMID: 36357879 PMCID: PMC9648011 DOI: 10.1186/s12955-022-02063-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 10/22/2022] [Indexed: 11/11/2022] Open
Abstract
Aim This study was conducted to examine the impact of sleep–wake problems on health-related quality of life of Japanese nursing college students. Methods This cross-sectional study was conducted in 2019 on 150 third and fourth-year nursing college students from two locations in Japan. Insomnia severity was assessed using the Insomnia Severity Index (ISI) and health-related quality of life using the SF-8 questionnaire. The total sleep time (TST) was divided into 3 groups: < 6 h, 6–7 h (reference), and ≥ 7 h. The total ISI score was divided into 2 groups: ≥ 8 points and < 8 points (reference). Logistic regression analysis was performed to evaluate sleep–wake problems related to decline in mental health. Results The median mental health indicated in the SF-8 questionnaire was divided into two groups, and the factors causing decline in mental health were investigated. The odds ratios (95% confidence interval) for adjusted ISI ≥ 8 and TST on weekdays < 6 h was 6.51 (2.96–14.30) and 3.38 (1.40–8.17), respectively. Mental health status was significantly lower when ISI ≥ 8 and even lower when TST < 6 h. Conclusion Insomnia and short sleep duration are associated with decreased mental health status in nursing college students. Many tended to lack sleep on weekdays. Sleep–wake problems identified while in university should be comprehensively dealt with.
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144
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Bouman EJ, Beulens JWJ, Groeneveld L, de Kruijk RS, Schoonmade LJ, Remmelzwaal S, Elders PJM, Rutters F. The association between social jetlag and parameters of metabolic syndrome and type 2 diabetes: a systematic review and meta‐analysis. J Sleep Res 2022; 32:e13770. [PMID: 36351658 DOI: 10.1111/jsr.13770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 09/20/2022] [Accepted: 09/28/2022] [Indexed: 11/11/2022]
Abstract
This study aims to determine the association between social jetlag and parameters of metabolic syndrome and type 2 diabetes (T2D) in a systematic review and meta-analysis. A systematic literature search was conducted in PubMed/Embase/Scopus until May 2022. Included studies described an association between social jetlag and parameters of the metabolic syndrome and/or T2D, were available full text and written in English or Dutch. Data extraction and quality assessment were performed on pre-piloted forms independently by two reviewers. Results were meta-analysed using random-effects analysis. A total of 6,290 titles/abstracts were screened, 176 papers were read full-text, 68 studies were included. Three studies were rated as low quality, 27 were moderate, and 38 were high quality. High quality studies showed that having social jetlag compared to no social jetlag was significantly associated with higher body mass index in 20 studies (0.49 kg/m2 , 95% confidence interval [CI] 0.21-0.77; I2 = 100%), higher waist circumference in seven studies (1.11 cm, 95% CI 0.42-1.80; I2 = 25%), higher systolic blood pressure in 10 studies (0.37 mmHg, 95% CI 0.00-0.74; I2 = 94%) and higher glycated haemoglobin in 12 studies (0.42%, 95% CI 0.12- 0.72; I2 = 100%). No statistically significant associations were found for obesity, abdominal obesity, high- and low-density lipoprotein levels, cholesterol, triglycerides, diastolic blood pressure, hypertension, fasting glucose, homeostatic model assessment for insulin resistance, metabolic syndrome or T2D. Sensitivity analyses did not reduce heterogeneity. Despite substantial heterogeneity, social jetlag is associated with certain parameters of the metabolic syndrome and T2D, but not with prevalent metabolic syndrome or T2D. These findings should be interpreted with caution as the level of evidence is low and mostly based on cross-sectional data. Longitudinal studies are needed to further assess the direction of causality.
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Affiliation(s)
- Emma J. Bouman
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science Amsterdam Netherlands
- Amsterdam Public Health Health Behaviors & Chronic Diseases Amsterdam The Netherlands
| | - Joline W. J. Beulens
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science Amsterdam Netherlands
- Amsterdam Public Health Health Behaviors & Chronic Diseases Amsterdam The Netherlands
- Julius Centre for Health Sciences and Primary Care University Medical Centre Utrecht Utrecht the Netherlands
| | - Lenka Groeneveld
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science Amsterdam Netherlands
- Amsterdam Public Health Health Behaviors & Chronic Diseases Amsterdam The Netherlands
| | - Rozemarijn S. de Kruijk
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science Amsterdam Netherlands
- Amsterdam Public Health Health Behaviors & Chronic Diseases Amsterdam The Netherlands
| | | | - Sharon Remmelzwaal
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science Amsterdam Netherlands
- Amsterdam Public Health Health Behaviors & Chronic Diseases Amsterdam The Netherlands
| | - Petra J. M. Elders
- Amsterdam Public Health Health Behaviors & Chronic Diseases Amsterdam The Netherlands
- Amsterdam UMC location Vrije Universiteit Amsterdam, General Practice Amsterdam Netherlands
| | - Femke Rutters
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science Amsterdam Netherlands
- Amsterdam Public Health Health Behaviors & Chronic Diseases Amsterdam The Netherlands
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145
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Salfi F, Amicucci G, Corigliano D, Viselli L, D'Atri A, Tempesta D, Gorgoni M, Scarpelli S, Alfonsi V, Ferrara M. Two years after lockdown: Longitudinal trajectories of sleep disturbances and mental health over the COVID-19 pandemic, and the effects of age, gender and chronotype. J Sleep Res 2022; 32:e13767. [PMID: 36317491 PMCID: PMC9878065 DOI: 10.1111/jsr.13767] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/19/2022] [Accepted: 10/04/2022] [Indexed: 11/09/2022]
Abstract
Since the first lockdown of Spring 2020, the COVID-19 contagion waves pervasively disrupted the sleep and mental health of the worldwide population. Notwithstanding the largest vaccination campaign in human history, the pandemic has continued to impact the everyday life of the general population for 2 years now. The present study provides the first evidence of the longitudinal trajectories of sleep disturbances and mental health throughout the pandemic in Italy, also describing the differential time course of age groups, genders and chronotypes. A total of 1062 Italians participated in a three-time-point longitudinal study covering two critical stages of the emergency (the first lockdown in April 2020 and the second partial lockdown in December 2020) and providing a long-term overview 2 years after the pandemic outbreak (April 2022). We administered validated questionnaires to evaluate sleep quality/habits, insomnia, depression, stress and anxiety symptoms. Analyses showed a gradual improvement in sleep disturbances, depression and anxiety. Conversely, sleep duration progressively decreased, particularly in evening-type and younger people. Participants reported substantial earlier bedtime and get-up time. Stress levels increased during December 2020 and then stabilised. This effect was stronger in the population groups apparently more resilient during the first lockdown (older people, men and morning-types). Our results describe a promising scenario 2 years after the pandemic onset. However, the improvements were relatively small, the perceived stress increased, and the re-establishment of pre-existing social/working dynamics led to general sleep curtailment. Further long-term monitoring is required to claim the end of the COVID-19 emergency on Italians' sleep and mental health.
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Affiliation(s)
- Federico Salfi
- Department of Biotechnological and Applied Clinical SciencesUniversity of L'AquilaL'AquilaItaly
| | - Giulia Amicucci
- Department of Biotechnological and Applied Clinical SciencesUniversity of L'AquilaL'AquilaItaly,Department of PsychologySapienza University of RomeRomeItaly
| | - Domenico Corigliano
- Department of Biotechnological and Applied Clinical SciencesUniversity of L'AquilaL'AquilaItaly,Department of PsychologySapienza University of RomeRomeItaly
| | - Lorenzo Viselli
- Department of Biotechnological and Applied Clinical SciencesUniversity of L'AquilaL'AquilaItaly
| | - Aurora D'Atri
- Department of Biotechnological and Applied Clinical SciencesUniversity of L'AquilaL'AquilaItaly
| | - Daniela Tempesta
- Department of Biotechnological and Applied Clinical SciencesUniversity of L'AquilaL'AquilaItaly
| | - Maurizio Gorgoni
- Department of PsychologySapienza University of RomeRomeItaly,Body and Action LabIRCSS Fondazione Santa LuciaRomeItaly
| | | | | | - Michele Ferrara
- Department of Biotechnological and Applied Clinical SciencesUniversity of L'AquilaL'AquilaItaly
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146
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Kjørstad K, Vedaa Ø, Pallesen S, Saxvig IW, Hysing M, Sivertsen B. Circadian preference in young adults: Associations with sleep and mental health outcomes from a national survey of Norwegian university students. Chronobiol Int 2022; 39:1465-1474. [PMID: 36259436 DOI: 10.1080/07420528.2022.2121657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Individual preferred timing of sleep and activity patterns, known as circadian preference, ranges from definitely morning types to definitely evening types. Being an evening type has been linked to adverse sleep and mental health outcomes. This study aimed to explore the associations between circadian preference and self-reported sleep, depression, anxiety, quality of life, loneliness, and self-harm/suicidal thoughts. Data stem from a national survey of students in higher education in Norway (the SHoT-study). All 169,572 students in Norway were invited to participate, and 59,554 students (66.5% women) accepted (response rate = 35.1%). Circadian preference was associated with sleep and mental health outcomes in a dose-response manner. For both genders, being an evening type (either definitely evening or more evening than morning) was associated with an increase in age-adjusted relative risk (RR-adjusted; range = 1.44 to 2.52 vs. 1.15 to 1.90, respectively) across all outcomes compared with definitely morning types. Overall, the present study provides further evidence that evening circadian preference is associated with adverse sleep and mental health outcomes in young adults. As such, future efforts to improve sleep and mental health in young adults should consider their circadian preferences.
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Affiliation(s)
- Kaia Kjørstad
- Department of Mental Health, Norwegian University of Science and Technology, Trondheim, Norway
| | - Øystein Vedaa
- Department of Research and Development, St. Olavs University Hospital, Trondheim, Norway.,Department of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway.,Department of Psychosocial Science, University of Bergen, Bergen, Norway
| | - Ståle Pallesen
- Department of Psychosocial Science, University of Bergen, Bergen, Norway.,Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway.,Optentia, The Vaal Triangle Campus of the North-West University, Vanderbijlpark, South Africa
| | - Ingvild West Saxvig
- Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway.,Centre for Sleep Medicine, Haukeland University Hospital, Bergen, Norway
| | - Mari Hysing
- Department of Psychosocial Science, University of Bergen, Bergen, Norway
| | - Børge Sivertsen
- Department of Mental Health, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway.,Department of Research and Innovation, Helse-Fonna HF, Haugesund, Norway
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147
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Bragazzi NL, Garbarino S, Puce L, Trompetto C, Marinelli L, Currà A, Jahrami H, Trabelsi K, Mellado B, Asgary A, Wu J, Kong JD. Planetary sleep medicine: Studying sleep at the individual, population, and planetary level. Front Public Health 2022; 10:1005100. [PMID: 36330122 PMCID: PMC9624384 DOI: 10.3389/fpubh.2022.1005100] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/20/2022] [Indexed: 01/27/2023] Open
Abstract
Circadian rhythms are a series of endogenous autonomous oscillators that are generated by the molecular circadian clock which coordinates and synchronizes internal time with the external environment in a 24-h daily cycle (that can also be shorter or longer than 24 h). Besides daily rhythms, there exist as well other biological rhythms that have different time scales, including seasonal and annual rhythms. Circadian and other biological rhythms deeply permeate human life, at any level, spanning from the molecular, subcellular, cellular, tissue, and organismal level to environmental exposures, and behavioral lifestyles. Humans are immersed in what has been called the "circadian landscape," with circadian rhythms being highly pervasive and ubiquitous, and affecting every ecosystem on the planet, from plants to insects, fishes, birds, mammals, and other animals. Anthropogenic behaviors have been producing a cascading and compounding series of effects, including detrimental impacts on human health. However, the effects of climate change on sleep have been relatively overlooked. In the present narrative review paper, we wanted to offer a way to re-read/re-think sleep medicine from a planetary health perspective. Climate change, through a complex series of either direct or indirect mechanisms, including (i) pollution- and poor air quality-induced oxygen saturation variability/hypoxia, (ii) changes in light conditions and increases in the nighttime, (iii) fluctuating temperatures, warmer values, and heat due to extreme weather, and (iv) psychological distress imposed by disasters (like floods, wildfires, droughts, hurricanes, and infectious outbreaks by emerging and reemerging pathogens) may contribute to inducing mismatches between internal time and external environment, and disrupting sleep, causing poor sleep quantity and quality and sleep disorders, such as insomnia, and sleep-related breathing issues, among others. Climate change will generate relevant costs and impact more vulnerable populations in underserved areas, thus widening already existing global geographic, age-, sex-, and gender-related inequalities.
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Affiliation(s)
- Nicola Luigi Bragazzi
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON, Canada,*Correspondence: Nicola Luigi Bragazzi
| | - Sergio Garbarino
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal/Child Sciences (DINOGMI), University of Genoa, Genoa, Italy
| | - Luca Puce
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal/Child Sciences (DINOGMI), University of Genoa, Genoa, Italy
| | - Carlo Trompetto
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal/Child Sciences (DINOGMI), University of Genoa, Genoa, Italy,Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ospedale Policlinico San Martino, Genoa, Italy
| | - Lucio Marinelli
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal/Child Sciences (DINOGMI), University of Genoa, Genoa, Italy,Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ospedale Policlinico San Martino, Genoa, Italy
| | - Antonio Currà
- Department of Medical-Surgical Sciences and Biotechnologies, Academic Neurology Unit, Ospedale A. Fiorini, Terracina, Italy,Sapienza University of Rome, Rome, Italy
| | - Haitham Jahrami
- Ministry of Health, Manama, Bahrain,College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia,Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, University of Sfax, Sfax, Tunisia
| | - Bruce Mellado
- School of Physics and Institute for Collider Particle Physics, University of the Witwatersrand, Johannesburg, South Africa,Subatomic Physics, iThemba Laboratory for Accelerator Based Sciences, Somerset West, South Africa
| | - Ali Asgary
- Disaster and Emergency Management Area and Advanced Disaster, Emergency and Rapid-Response Simulation (ADERSIM), School of Administrative Studies, York University, Toronto, ON, Canada
| | - Jianhong Wu
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON, Canada
| | - Jude Dzevela Kong
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON, Canada
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148
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Gorgol J, Stolarski M, Łowicki P. God save the owls! Religiosity moderates the relationship between morningness-eveningness and depressive symptoms. Chronobiol Int 2022; 39:1517-1523. [PMID: 36200312 DOI: 10.1080/07420528.2022.2131563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Studies show that eveningness preference and depressive symptoms are positively related. However, little is known about possible factors that could reduce this association. In the present study, we examine the moderating effects of religiosity on the relationship between eveningness and depressive symptoms. The main analyses were conducted on a group of 606 individuals (300 women and 306 men) aged 18 to 36 years (M = 29.00, SD = 4.95). The participants completed the Composite Scale of Morningness, the Patient Health Questionnaire-9, and the Centrality of Religiosity Scale. Our results confirmed earlier findings that eveningness was positively related to depressive symptoms. The magnitude of this association decreased with higher religiosity. This lead to the conclusion that religiosity may act as a protective factor against elevated depressive symptoms among evening-oriented individuals.
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Affiliation(s)
- Joanna Gorgol
- Faculty of Psychology, University of Warsaw, Warsaw, Poland
| | | | - Paweł Łowicki
- Faculty of Psychology, University of Warsaw, Warsaw, Poland
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149
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Faaland P, Vedaa Ø, Langsrud K, Sivertsen B, Lydersen S, Vestergaard CL, Kjørstad K, Vethe D, Ritterband LM, Harvey AG, Stiles TC, Scott J, Kallestad H. Digital cognitive behaviour therapy for insomnia (dCBT-I): Chronotype moderation on intervention outcomes. J Sleep Res 2022; 31:e13572. [PMID: 35224810 PMCID: PMC9787033 DOI: 10.1111/jsr.13572] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 02/10/2022] [Accepted: 02/10/2022] [Indexed: 12/30/2022]
Abstract
Using data from 1721 participants in a community-based randomized control trial of digital cognitive behavioural therapy for insomnia compared with patient education, we employed linear mixed modelling analyses to examine whether chronotype moderated the benefits of digital cognitive behavioural therapy for insomnia on self-reported levels of insomnia severity, fatigue and psychological distress. Baseline self-ratings on the reduced version of the Horne-Östberg Morningness-Eveningness Questionnaire were used to categorize the sample into three chronotypes: morning type (n = 345; 20%); intermediate type (n = 843; 49%); and evening type (n = 524; 30%). Insomnia Severity Index, Chalder Fatigue Questionnaire, and Hospital Anxiety and Depression Scale were assessed pre- and post-intervention (9 weeks). For individuals with self-reported morning or intermediate chronotypes, digital cognitive behavioural therapy for insomnia was superior to patient education on all ratings (Insomnia Severity Index, Chalder Fatigue Questionnaire, and Hospital Anxiety and Depression Scale) at follow-up (p-values ≤ 0.05). For individuals with self-reported evening chronotype, digital cognitive behavioural therapy for insomnia was superior to patient education for Insomnia Severity Index and Chalder Fatigue Questionnaire, but not on the Hospital Anxiety and Depression Scale (p = 0.139). There were significant differences in the treatment effects between the three chronotypes on the Insomnia Severity Index (p = 0.023) estimated difference between evening and morning type of -1.70, 95% confidence interval: -2.96 to -0.45, p = 0.008, and estimated difference between evening and intermediate type -1.53, 95% confidence interval: -3.04 to -0.03, p = 0.046. There were no significant differences in the treatment effects between the three chronotypes on the Chalder Fatigue Questionnaire (p = 0.488) or the Hospital Anxiety and Depression Scale (p = 0.536). We conclude that self-reported chronotype moderates the effects of digital cognitive behavioural therapy for insomnia on insomnia severity, but not on psychological distress or fatigue.
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Affiliation(s)
- Patrick Faaland
- Department of Mental HealthNorwegian University of Science and TechnologyTrondheimNorway,St Olavs University Hospital, ØstmarkaTrondheimNorway
| | - Øystein Vedaa
- Department of Mental HealthNorwegian University of Science and TechnologyTrondheimNorway,Department of Health PromotionNorwegian Institute of Public HealthBergenNorway,Voss District Psychiatric HospitalNKS BjørkeliVossNorway,Department of Research and DevelopmentSt Olavs University HospitalTrondheimNorway
| | - Knut Langsrud
- St Olavs University Hospital, ØstmarkaTrondheimNorway
| | - Børge Sivertsen
- Department of Mental HealthNorwegian University of Science and TechnologyTrondheimNorway,Department of Health PromotionNorwegian Institute of Public HealthBergenNorway,Department of Research and InnovationFonna Health TrustHaugesundNorway
| | - Stian Lydersen
- Department of Mental HealthRegional Centre for Child and Youth Mental Health and Child WelfareNorwegian University of Science and TechnologyTrondheimNorway
| | - Cecilie L. Vestergaard
- Department of Mental HealthNorwegian University of Science and TechnologyTrondheimNorway,St Olavs University Hospital, ØstmarkaTrondheimNorway
| | - Kaia Kjørstad
- Department of Mental HealthNorwegian University of Science and TechnologyTrondheimNorway,St Olavs University Hospital, ØstmarkaTrondheimNorway
| | - Daniel Vethe
- Department of Mental HealthNorwegian University of Science and TechnologyTrondheimNorway,St Olavs University Hospital, ØstmarkaTrondheimNorway
| | - Lee M. Ritterband
- Center for Behavioral Health and TechnologyDepartment of Psychiatry and Neurobehavioral SciencesUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Allison G. Harvey
- Department of PsychologyUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Tore C. Stiles
- Department of PsychologyNorwegian University of Science and TechnologyNorway
| | - Jan Scott
- Department of Mental HealthNorwegian University of Science and TechnologyTrondheimNorway,University of NewcastleNewcastleUK
| | - Håvard Kallestad
- Department of Mental HealthNorwegian University of Science and TechnologyTrondheimNorway,St Olavs University Hospital, ØstmarkaTrondheimNorway
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150
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Stolarski M, Gorgol J. Analyzing social perception of chronotypes within the stereotype content model. Chronobiol Int 2022; 39:1475-1484. [DOI: 10.1080/07420528.2022.2123740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Joanna Gorgol
- Faculty of Psychology, University of Warsaw, Warsaw, Poland
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