title: Sleep Duration and Obesity in Adults: What Are the Connections?
abstract: Collectively, cross-sectional and longitudinal studies on self-reported sleep duration and obesity do not show a clear pattern of association with some showing a negative linear relationship, some showing a U-shaped relationship, and some showing no relationship. Associations between sleep duration and obesity seem stronger in younger adults. Cross-sectional studies using objectively measured sleep duration (actigraphy or polysomnography (PSG)) also show this mixed pattern whereas all longitudinal studies to date using actigraphy or PSG have failed to show a relationship with obesity/weight gain. It is still too early and a too easy solution to suggest that changing the sleep duration will cure the obesity epidemic. Given novel results on emotional stress and poor sleep as mediating factors in the relationship between sleep duration and obesity, detection and management of these should become the target of future clinical efforts as well as future research.
authors.affiliation: Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden. jenny.theorell-haglow@medsci.uu.se.
authors.forename: Jenny
authors.initials: J
authors.lastname: Theorell-Haglöw
authors.affiliation: Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
authors.forename: Eva
authors.initials: E
authors.lastname: Lindberg
mesh_terms: D015992:Body Mass Index; D003430:Cross-Sectional Studies; D006801:Humans; D008137:Longitudinal Studies; D009765:Obesity / Q000209:etiology* / Q000503:physiopathology / Q000517:prevention & control; D064887:Observational Studies as Topic; D017286:Polysomnography; D012307:Risk Factors; D057566:Self Report; D012892:Sleep Deprivation / Q000150:complications / Q000503:physiopathology; D012893:Sleep Wake Disorders / Q000150:complications* / Q000503:physiopathology / Q000517:prevention & control; D015430:Weight Gain
keywords: Adults; Obesity; Review; Sleep