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9 Interesting Facts About Sleep

A good night’s sleep is now widely considered just as critical to your health—if not more so—than a good diet, exercise, and not smoking.

By Marissa Scheid

50–70 million Americans have a sleep disorder.

You should stop drinking caffeine 8 hours before bed.

Fewer than 7 hours of sleep a day can affect your immune, cardiovascular, nervous, and endocrine systems.

70 percent of Americans say they experience frequent sleep problems.

You’re likely to be hungrier if you don’t get enough sleep, thanks to a decrease in leptin, a hormone that regulates appetite.

More than 18 million Americans have sleep apnea.

Reading on a tablet before bed instead of a printed book (or magazine!) delays sleep, since the screen’s blue light prevents the release of zzz-inducing melatonin. Less melatonin means you’ll have less REM sleep and wake up feeling not as rested, even if you slept eight hours. Put the tablet down or dim the screen.

24% of women and 40% of men habitually snore, while 10 to 12% of kids snore.

A.m. workouts rule! They can help maximize your deep sleep more than midday or evening workouts.

9 Interesting Facts About Sleep

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