This study uses self-reported sleep duration data from 730,187 participants across 63 countries to identify three distinct phases in the adult human life course: early adulthood (19-33 years), mid-adulthood (34-53 years), and late adulthood (54+ years). These phases are consistent across various demographics. In late adulthood, cognitive performance (spatial navigation) shows an inverted U-shaped relationship with reported sleep duration, with optimal performance at 7 hours. Geographic clustering of sleep duration is observed and linked to economic factors, culture, and latitude.
Publisher
Nature Communications
Published On
Dec 13, 2022
Authors
A. Coutrot, A. S. Lazar, M. Richards, E. Manley, J. M. Wiener, R. C. Dalton, M. Hornberger, H. J. Spiers
Tags
sleep duration
cognitive performance
adult life stages
geographic clustering
economic factors
cultural influences
optimal sleep
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