The study of 840,000 people, by researchers at University of Colorado Boulder and the Broad Institute of MIT and Harvard, represents some of the strongest evidence yet that chronotype -- a person's propensity to sleep at a certain time -- influences depression risk.

It's also among the first studies to quantify just how much, or little, change is required to influence mental health.

Know more: https://www.sciencedaily.com/releases/2021/05/210528114107.htm

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