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

A. Coutrot (), A. S. Lazar, M. Richards, E. Manley, J. M. Wiener, R. C. Dalton, M. Hornberger () and H. J. Spiers ()
Additional contact information
A. Coutrot: LIRIS—CNRS—University of Lyon
A. S. Lazar: Norwich Medical School, University of East Anglia
M. Richards: Unit for Lifelong Health and Ageing, University College London
E. Manley: School of Geography, University of Leeds
J. M. Wiener: Bournemouth University
R. C. Dalton: School of Architecture, Lancaster University
M. Hornberger: Norwich Medical School, University of East Anglia
H. J. Spiers: Institute of Behavioural Neuroscience, University College London

Nature Communications, 2022, vol. 13, issue 1, 1-9

Abstract: 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.

Date: 2022
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DOI: 10.1038/s41467-022-34624-8

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