Disrupted sleep from extremes in temperature due to climate change can be added to the long list of reasons for lost nights and poor productivity.
Temperature variations have long been anecdotally related to poor-quality sleep, but recent tracking of more than 7mn sleep records across 68 countries using physiological measures of sleep from fitness wristbands has confirmed the extent of the problem.
An original study in 2017 produced by quantitative social scientists from MIT and University of California, San Diego first attempted to shed some light on how much variations in temperature affect sleep.
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