When you’re tired, is it more valuable to go to bed early or stick to your normal bedtime? When you’re absolutely shattered, crawling into bed as early as possible often feels like the only ...

“Humans evolved to go to bed early,” she says. “When we were hunter gatherers, there would have been an increased risk of attack as dawn broke, so nature has cleverly designed us to get our ...

Some of us are naturally programmed to fall asleep later, while others may have a predisposition to go to bed early and rise early. Both are perfectly okay. Early larks may have a slight edge in ...