A new GLO Discussion Paper shows by scenarios that global warming will substantially decrease sleep duration.
GLO Discussion Paper No. 1328, 2023
Temperature exposure and sleep duration: Evidence from time use surveys – Download PDF
by Hajdu, Tamás
GLO Fellow Tamás Hajdu
Author Abstract: The Earth’s climate is projected to warm significantly in the 21st century, and this will affect human societies in many ways. Since sleep is a basic human need and part of everyone’s life, the question of how temperature affects human sleep naturally arises. This paper examines the effect of daily mean temperature on sleep duration using nationally representative Hungarian time use surveys between 1976 and 2010. Compared to a mild temperature (5-10 °C), colder temperatures do not influence sleep duration. However, as daily mean temperatures rise, sleep duration starts to strongly decline. The effect of a hot (>25 °C) day is −12.4 minutes. The estimated sleep loss is especially large on weekends and public holidays, for older individuals, and for men. Combining the estimated effects with temperature projections of twenty-four climate models under four climate change scenarios shows that the warming climate will substantially decrease sleep duration. The projected impacts are especially large when taking into account of the effects of heatwave days. This study also shows that different groups in society are likely to be affected in significantly different ways by a warming climate.
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Journal of Population Economics (JOPE)
JOPE (2022): CiteScore 9.2 (LINK) & Impact Factor 6.1; 524 K Downloads
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