It's a commonly held belief that before artificial lighting, human sleep was 'naturally' divided into two distinct periods, but how true is that?

World Sleep Day 2025: Catch Those Zzzs on March 14 Ah, sleep — the magical reset button we all crave but often neglect. March 14, 2025, marks World Sleep Day, an annual global call to prioritize sleep ...

Being sleep-deprived can leave people tired, grumpy and less likely to make good decisions, said Alan Gonzalez. It can also impair their heart functions, said Gonzalez, a physician whose patients ...

As the days get warmer and the nights get longer, your sleep pattern may be in flux — if it wasn’t already. What better time to snuggle back into a satisfying sleep schedule than the celebration of ...

World Sleep Day, an awareness event dedicated to celebrating the importance of healthy sleep, is observed annually on the Friday before the spring vernal equinox. This year, it will be celebrated on ...