We all know that 3 p.m.-on-a-workday feeling: your eyelids start drooping, your computer screen gets blurry, and the floor beneath your desk looks like the perfect place to curl up for a nap. As it turns out, there’s a scientific reason for your slumping shoulders: “Between 1 p.m. and 3 p.m., a drop in body temperature naturally occurs in most people, which releases melatonin, a hormone that makes you feel sleepy,” says Dr. Michael Breus, sleep expert and author of
The Sleep Doctor’s Diet Plan.
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