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Add Yahoo as a preferred source to see more of our stories on Google. The effects of using a screen just before going to sleep have been proven in a new study. (Getty Images) (Tero Vesalainen via ...

What should you do if you wake up in the middle of the night and can’t fall back asleep? This is one of the most common—and frustrating—forms of insomnia. It turns out there’s a biological reason for ...

Consequently, we humans, as well as all other organisms, developed a circadian rhythm in our physiology and behaviors with ...

Margaret Thatcher, who was known for sleeping only four hours a night, is often credited with saying “Sleep is for wimps!” But sleep is actually work. Putting down the phone, setting aside personal or ...