We sleep for a third of our lives and there are many restorative processes going on during sleep that are needed to stay healthy. Why do we usually sleep at night? What happens when we don't sleep? On ...

"There's a very strong biological pathway that we're seeing—it's not just observational," Shiwen Li, a postdoctoral researcher at USC and one of the lead study authors, told The Guardian. “Because the ...

You’ve probably heard the widely-held belief that everyone needs eight hours of sleep a night for optimal health. But does this one-size-fits-all rule actually apply to everyone? Sleep is ...