By Laura Bolt for DETAILS.
As tempting as it may be to queue up one more episode of Unbreakable Kimmy Schmidt, stealing that precious sleep time from yourself could be increasing your waistline. A study published in the journal Sleep shows a correlation between later bedtimes and higher body-mass index, according to the New York Times.
Starting in 1996, researchers followed a control group of more than 3,300 individuals, all starting from adolescence, for 13 years. Even controlling for age, race, ethnicity, sex, and other factors, the results were surprising: Every extra hour shaved from sleep time correlated with an approximately two-point increase in body-mass index. Shockingly, neither amount of exercise nor time spent watching television seemed impact the effect--though, unsurprisingly, fast-food intake did.
Long story short: Consider shutting your lights off a bit earlier tonight. Your waist will thank you . . . and don't you have CrossFit in the morning, anyway?
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