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Carlos RM, Matias CN, Cavaca ML, Cardoso S, Santos DA, Giro R, Vaz JR, Pereira P, Vicente F, Leonardo-Mendonça RC, Ganhão-Arranhado S, Santos HO, Reiter RJ, Teixeira FJ. The effects of melatonin and magnesium in a novel supplement delivery system on sleep scores, body composition and metabolism in otherwise healthy individuals with sleep disturbances. Chronobiol Int 2024; 41:817-828. [PMID: 38745424 DOI: 10.1080/07420528.2024.2353225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 05/01/2024] [Indexed: 05/16/2024]
Abstract
The purpose of this study was to investigate the effects of a novel dietary supplement, including melatonin and magnesium, delivered via coffee pods on sleep quality, resting metabolic rate (RMR), and body composition in individuals with poor sleep quality disturbances. Using a double-blinded, randomized, crossover trial, we recruited 35 participants to a 4-week intervention with both supplements (1.9 mg melatonin + 200 mg elemental magnesium before sleep) and placebo conditions, considering a 7d washout period between treatments. The Pittsburgh Sleep Quality Index (PSQI) questionnaire was applied, RMR (kcal) was measured using indirect calorimetry (canopy ventilated open-circuit system) and body composition was assessed using dual-energy X-ray absorptiometry. Decreases in PSQI and anger - hostility scores, as well as in energy intake and fat mass, were observed (p < 0.05) for both conditions, from baseline to the end of each 4-week intervention. Differences between conditions were also observed for these parameters along with energy spent in activity, number of sedentary breaks, sleep efficiency, latency time, time in bed, total sleep time, awakening time, and movement index (p < 0.05) favouring the supplement condition. However, the final PSQI questionnaire scores still indicated poor sleep quality on average (PSQI > 5), in both conditions, with no changes regarding RMR. A melatonin-magnesium supplement, in a coffee pod format, showed improvements in sleep quality in otherwise healthy individuals with sleep disturbances, however PSQI questionnaire scores still indicated poor quality on average (PSQI > 5).
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Affiliation(s)
- Rafael M Carlos
- Atlântica - Instituto Universitário, Fábrica da Pólvora de Barcarena, 2730-036 Barcarena, Portugal
- Bettery Lifelab, Bettery S.A., Lisboa, Portugal
| | - Catarina N Matias
- Bettery Lifelab, Bettery S.A., Lisboa, Portugal
- CIDEFES, Universidade Lusófona, Lisboa, Portugal
| | - Margarida L Cavaca
- Bettery Lifelab, Bettery S.A., Lisboa, Portugal
- Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz-Quebrada, Portugal
| | - Sofia Cardoso
- Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz-Quebrada, Portugal
| | - Diana A Santos
- ESECS, Polytechnic University of Leiria, Leiria, Portugal
- Research Center in Sport Sciences, Health Sciences and Human Development (CIDESD), Portugal
| | - Rita Giro
- Bettery Lifelab, Bettery S.A., Lisboa, Portugal
| | - João R Vaz
- Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz-Quebrada, Portugal
- Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, Monte de Caparica, Portugal
| | - Paula Pereira
- Grupo de Estudos em Nutrição Aplicada (GENA), CiiEM, Egas Moniz-Cooperativa de Ensino Superior, Almada, Portugal
| | - Filipa Vicente
- Grupo de Estudos em Nutrição Aplicada (GENA), CiiEM, Egas Moniz-Cooperativa de Ensino Superior, Almada, Portugal
| | | | - Susana Ganhão-Arranhado
- Atlântica - Instituto Universitário, Fábrica da Pólvora de Barcarena, 2730-036 Barcarena, Portugal
- CINTESIS, Center for Health Technology and Services Research, Porto, Portugal
| | - Heitor O Santos
- School of Medicine, Federal University of Uberlandia (UFU), Uberlandia, Brazil
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health Long School of Medicine, San Antonio, Texas, USA
| | - Filipe J Teixeira
- Atlântica - Instituto Universitário, Fábrica da Pólvora de Barcarena, 2730-036 Barcarena, Portugal
- Bettery Lifelab, Bettery S.A., Lisboa, Portugal
- Interdisciplinary Center for the Study of Human Performance (CIPER), Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz-Quebrada, Portugal
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Heemskerk DM, Busch V, Piotrowski JT, Waterlander WE, Renders CM, van Stralen MM. A system dynamics approach to understand Dutch adolescents' sleep health using a causal loop diagram. Int J Behav Nutr Phys Act 2024; 21:34. [PMID: 38519989 PMCID: PMC10958857 DOI: 10.1186/s12966-024-01571-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 02/13/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Healthy sleep is crucial for the physical and mental wellbeing of adolescents. However, many adolescents suffer from poor sleep health. Little is known about how to effectively improve adolescent sleep health as it is shaped by a complex adaptive system of many interacting factors. This study aims to provide insights into the system dynamics underlying adolescent sleep health and to identify impactful leverage points for sleep health promotion interventions. METHODS Three rounds of single-actor workshops, applying Group Model Building techniques, were held with adolescents (n = 23, 12-15 years), parents (n = 14) and relevant professionals (n = 26). The workshops resulted in a multi-actor Causal Loop Diagram (CLD) visualizing the system dynamics underlying adolescent sleep health. This CLD was supplemented with evidence from the literature. Subsystems, feedback loops and underlying causal mechanisms were identified to understand overarching system dynamics. Potential leverage points for action were identified applying the Action Scales Model (ASM). RESULTS The resulting CLD comprised six subsystems around the following themes: (1) School environment; (2) Mental wellbeing; (3) Digital environment; (4) Family & Home environment; (5) Health behaviors & Leisure activities; (6) Personal system. Within and between these subsystems, 16 reinforcing and 7 balancing feedback loops were identified. Approximately 60 potential leverage points on different levels of the system were identified as well. CONCLUSIONS The multi-actor CLD and identified system dynamics illustrate the complexity of adolescent sleep health and supports the need for developing a coherent package of activities targeting different leverage points at all system levels to induce system change.
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Affiliation(s)
- Danique M Heemskerk
- Department of Health Sciences, Faculty of Science and Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
- Department of Healthy Living, Public Health Service (GGD), Sarphati Amsterdam, City of Amsterdam, The Netherlands.
| | - Vincent Busch
- Department of Healthy Living, Public Health Service (GGD), Sarphati Amsterdam, City of Amsterdam, The Netherlands
| | - Jessica T Piotrowski
- Amsterdam School of Communication Research ASCoR, University of Amsterdam, Amsterdam, The Netherlands
| | - Wilma E Waterlander
- Department of Public and Occupational Health, Amsterdam Public Health Research Institute, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
| | - Carry M Renders
- Department of Health Sciences, Faculty of Science and Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maartje M van Stralen
- Department of Health Sciences, Faculty of Science and Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
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Yang J, Zhang K, Xi Z, Ma Y, Shao C, Wang W, Tang YD. Short sleep duration and the risk of nonalcoholic fatty liver disease/metabolic associated fatty liver disease: a systematic review and meta-analysis. Sleep Breath 2023; 27:1985-1996. [PMID: 36544011 PMCID: PMC9771780 DOI: 10.1007/s11325-022-02767-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022]
Abstract
PURPOSE It is unclear whether or not nonalcoholic fatty liver disease (NAFLD)/metabolic dysfunction-associated fatty liver disease (MAFLD) is related to short sleep duration. A meta-analysis was conducted to determine if inadequate sleep time increased the risk of NAFLD/MAFLD. METHODS A comprehensive systematic literature review was conducted in the Embase, PubMed, and Cochrane Library databases from inception to August 1, 2022. Studies examining the correlation between inadequate sleep time and the risk of NAFLD/MAFLD were included. We pooled the odds ratios (ORs) and 95% confidence intervals (CIs) using a random-effects model. RESULTS This meta-analysis included fifteen studies involving a total of 261,554 participants. In the pooled analysis, short sleep duration was found to be strongly correlated with an increased risk of NAFLD/MAFLD (OR, 1.15; 95% CI, 1.04-1.28; P = 0.01), with a moderate degree of heterogeneity between studies (I2 = 71.92%, Q = 49.87, P < 0.01). The sensitivity analysis suggested that the primary outcome was robust, and there was no significant publication bias. CONCLUSION This meta-analysis indicates that inadequate sleep duration is strongly correlated with an elevated risk of NAFLD/MAFLD. The findings suggest that obtaining an adequate amount of sleep may be useful for preventing NAFLD/MAFLD, which is especially important given the low rate of response to pharmacotherapy.
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Affiliation(s)
- Jie Yang
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China
| | - Kuo Zhang
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China
| | - Ziwei Xi
- Department of Cardiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037 China
| | - Yue Ma
- Department of Cardiology and Institute of Vascular Medicine, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Third Hospital, No. 49 Huayuanbei Road, Beijing, 100191 China
| | - Chunli Shao
- Department of Cardiology and Institute of Vascular Medicine, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Third Hospital, No. 49 Huayuanbei Road, Beijing, 100191 China
| | - Wenyao Wang
- Department of Cardiology and Institute of Vascular Medicine, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Third Hospital, No. 49 Huayuanbei Road, Beijing, 100191 China
| | - Yi-Da Tang
- Department of Cardiology and Institute of Vascular Medicine, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Third Hospital, No. 49 Huayuanbei Road, Beijing, 100191 China
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Ramdhany YD, Devi Goorah SS, Cheeneebash J, Niketan Oodun R. Factors Associated with Poor Sleep among Young People in Mauritius: A Survey-Based Study. INTERNATIONAL JOURNAL OF MEDICAL STUDENTS 2022. [DOI: 10.5195/ijms.2022.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Poor sleep quality in young people is a global concern. This study was conducted to explore sleep quality and its contributory factors in young people of Mauritius.
Methods: This cross-sectional study comprised 202 participants aged between 14 to 29 years. The Pittsburgh Sleep Quality Index (PSQI), the Epworth Sleepiness Scale (ESS) and the Adolescent Sleep Hygiene Scale (ASHS) were used to measure sleep quality, daytime sleepiness, and sleep hygiene respectively. Chi-squared tests were conducted to evaluate relationships between the collected variables. Multivariate logistic regression was used to identify associated factors with poor sleep quality.
Results: The mean global PSQI was 4.81 (95%CI: 4.4, 5.22). Prevalence of poor sleep quality (global PSQI score > 5) was 30.7%. The male gender reported better sleep (p=0.008). Sleep quality was significantly associated with longer sleep duration (p<0.0001), pre-bedtime relaxing activities (p=0.01), and daytime physical exercise (p=0.001). In contrast, alcohol consumption after 18:00 (p<0.0001), tobacco smoking after 18:00 (p<0.0001), pre-bedtime awakening activities (p=0.001), and poor sleep environment (p<0.0001) negatively influenced sleep quality. Multivariate logistic regression confirmed that female gender and sleep environment factors were associated with higher likelihood of poor sleep quality, while participants with longer duration of sleep (>7 hours), cognitive/emotional and sleep stability factors were found to be less likely to have poor sleep quality.
Conclusion: This study showed that the prevalence of poor sleep in young people in Mauritius was 30.7%. Female gender and sleep environment factors were main contributory factors. These initial results can guide further research on sleep quality
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Arango C, Pina-Camacho L. Trends in utilisation of hypnotics among Scandinavian young people. Acta Psychiatr Scand 2021; 144:97-99. [PMID: 34287821 DOI: 10.1111/acps.13341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/15/2021] [Accepted: 06/20/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Celso Arango
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, CIBERSAM, IiSGM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Laura Pina-Camacho
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, CIBERSAM, IiSGM, School of Medicine, Universidad Complutense, Madrid, Spain.,Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
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