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- Title
Reported sleep duration reveals segmentation of the adult life-course into three phases.
- Authors
Coutrot, A.; Lazar, A. S.; Richards, M.; Manley, E.; Wiener, J. M.; Dalton, R. C.; Hornberger, M.; Spiers, H. J.
- Abstract
Classically the human life-course is characterized by youth, middle age and old age. A wide range of biological, health and cognitive functions vary across this life-course. Here, using reported sleep duration from 730,187 participants across 63 countries, we find three distinct phases in the adult human life-course: early adulthood (19-33yrs), mid-adulthood (34-53yrs), and late adulthood (54+yrs). They appear stable across culture, gender, education and other demographics. During the third phase, where self-reported sleep duration increases with age, cognitive performance, as measured by spatial navigation, was found to have an inverted u-shape relationship with reported sleep duration: optimal performance peaks at 7 hours reported sleep. World-wide self-reported sleep duration patterns are geographically clustered, and are associated with economy, culture, and latitude. Sleep varies within and between individuals. Here, using self-reported sleep duration from a large sample of participants across 63 countries, the authors show three phases in the adult human life-course, consistent across culture, gender, education and other demographics.
- Subjects
OLDER people; SLEEP; MIDDLE age; OLD age; COGNITIVE ability
- Publication
Nature Communications, 2022, Vol 13, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-022-34624-8