Article

Knutson KL. Sleep duration and cardiometabolic risk: a review of the epidemiologic evidence. Best Pract Res Clin Endocrinol Metab 24, 731-743

Section of Pulmonary/Critical Care, Department of Medicine, University of Chicago, 5841 S Maryland Ave MC 6076, Chicago, IL 60622, USA.
Best Practice & Research: Clinical Endocrinology & Metabolism (Impact Factor: 4.6). 10/2010; 24(5):731-43. DOI: 10.1016/j.beem.2010.07.001
Source: PubMed

ABSTRACT

Laboratory studies have found that short-term sleep restriction is associated with impairments in glucose metabolism, appetite regulation and blood pressure regulation. This chapter reviews the epidemiologic evidence for an association between habitual sleep duration and quality and risk of cardiometabolic diseases including obesity, diabetes and hypertension. Multiple studies observed a cross-sectional association between short sleep duration (generally <6 h per night) and increased body mass index or obesity, prevalent diabetes and prevalent hypertension. Many studies also reported an association between self-reported long sleep duration (generally >8 h per night) and cardiometabolic disease. There have been a few prospective studies and several, but not all, have found an association between short sleep and incident diabetes, hypertension and markers of cardiovascular disease. Future prospective epidemiologic studies need to include objective measures of sleep, and intervention studies are needed in order to establish a causal link between impaired or insufficient sleep and cardiometabolic disease risk.

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    • "Des données plus récentes montrent que l'exercice physique est bénéfique pour la prévention de la douleur, le moral et la qualité du sommeil [1] [2]. Le manque de sommeil est en effet un facteur de risque associé dans les maladies chroniques modernes, la dépression et le risque d'accidents [3] [4]. Dormir 7 à 8 heures a été systématiquement trouvé associé à un risque moindre de morbidité et de mortalité [5]. "
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    • "Studies frequently demonstrate that shorter (e.g., <6 hours/night) and longer (e.g., >8 hours/night) sleep durations, sleep quality complaints (e.g., frequently waking up, trouble initiating or maintaining sleep), and greater daytime sleepiness are associated with poorer mental and physical health (Cappuccio et al. 2010; Duncan et al. 2014; Empana et al. 2009; Holliday et al. 2013). Sleep is known to have a direct influence on health and to also operate through a combination of behavioral, metabolic, and hormonal factors to influence health and lifestyle behaviors (Grandner et al. 2010; Knutson 2010). For example, lack of sleep alters hormonal factors, which in turn lead to increased energy intake, preference for energy dense foods and poorer dietary quality (Chaput 2014). "
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    ABSTRACT: Aim This study examines associations between the variability in bed/rise times, usual bed/rise time and dietary quality, physical activity, alcohol consumption, sitting time, sleep insufficiency and a composite index of behaviors. Subject and methods A random sample of Australian adults drawn from an online Panel cohort in 2013 completed a cross-sectional online survey. A total of 1,317 participants, median age 57 (IQR = 20) completed the survey. Bed- and wake times, variability in bed- and wake-times, dietary quality, physical activity, alcohol consumption, sitting time, sleep insufficiency and socio-demographics were assessed using a questionnaire. Associations were examined with generalized linear models. Results Having bed - times that varied by >30 min were associated with lower dietary quality, higher alcohol consumption, higher sitting time, more frequent insufficient sleep and poorer overall pattern of lifestyle behaviors. Greater variability in wake times, usual bed times and usual wake times were inconsistently associated with lifestyle behaviours. Conclusions Greater bed-time variability is associated with a less healthy pattern of lifestyle behaviors. Greater consistency in sleep timing may contribute to, or be reflective of, a healthier lifestyle.
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