A new study drawing from 47 million nights of sleep data has found that a simple sleep behavior rule can extend your life. Here's what it is and how you can do it.
You're probably already aware of the effects of not getting enough sleep. Not only can sleep deprivation lead to mental and physical health risks, studies have shown that it can shorten life expectancy. But what if there was a way you could do the op... [11071 chars]