Eight solid hours of sleep... and DOOM!
June 11, 2008 9:59 AM Subscribe
How much sleep do you really need? Six and a half to seven and a half hours. People who sleep eight hours a night are 12% more likely to die in a six-year period than those who sleep less. If your new lack of sleep means you get tired mid-afternoon, recent research says the solution is, shockingly, to nap. And if you can't nap, at least learn the optimal way to dose yourself with caffeine.
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