Sleep

Wish your pointe shoes were slightly less painful? Get more sleep! A recent study found that when people stayed in bed for at least 10 hours a night, by the fourth day they experienced a 25 percent decrease in pain sensitivity. Researchers think this happens because we have more pain receptors in our blood system when we're exhausted. How's that for an excuse to sleep in?

Some days, it seems like however much I eat, my stomach just won't fill up. One possible culprit? A lack of Zzzs.

 

A recent study published in the Annals of Internal Medicine found that four nights of sleep deprivation reduced insulin sensitivity in fat cells by 30 percent—which means the body's producing that much less leptin, a hormone that inhibits our appetite. On top of that, previous research has also shown that getting only four hours of sleep a night slows our metabolism. Double oof.