A neuroscientist's research and book emphasize the health threats of sleep deprivation. And another study supports some old advice: Don't go to bed angry.
Having trouble catching zzz's? It could have something to do with your sense of purpose, or lack thereof.
Here's another reason why baby boomers are still running various sectors of society: They need less sleep. According to a new study published, fittingly, in the journal Sleep, people in their 60s don't need to snooze for quite as long as their younger counterparts. This may partly explain why Jay Leno is still on the air.