Psychology

Reported sleep duration reveals segmentation of the adult life-course into three phases

A. Coutrot, A. S. Lazar, et al.

This groundbreaking research by A. Coutrot and colleagues explores the relationship between sleep duration and cognitive performance across different life stages. With data from over 730,000 participants in 63 countries, discover how optimal sleep can enhance cognitive abilities in late adulthood and the intriguing geographic patterns linked to sleep duration.

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Abstract

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

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