Before electricity, humans naturally slept in two phases, waking for an hour or two around midnight for quiet activities.

Daytime “wash cycles” help clear waste from the brain but cause momentary drops in attention after sleepless nights.

Continuous sleep is a modern habit, not an evolutionary constant, which helps explain why many of us still wake at 3 am and ...

Your body possesses an internal clock, the circadian rhythm, that dictates sleep and wake cycles. This biological marvel, ...

Ever reached a point where you've scrolled social media on your phone for so long before bedtime, you feel foggy, overstimulated, anxious and struggle to get to sleep? It may be that you, and your ...

Daylight saving time ended Sunday, giving most Americans an extra hour of sleep. Experts say the switch back to standard time ...

Generation Z — often represented and referred to those born between the mid-1990s and 2012 — are the ones to grow up ...

With daylight saving time fast approaching, our sleep cycles are about to get thrown for a loop. But don’t panic — you don’t have to rely on pharmaceutical sleep aids that leave you groggy or tired.