Tart cherry juice: You’ve heard people say they need their “beauty sleep”—and it turns out there’s some truth to that, according to a recent study in the British Medical Journal. (People rated study participants as healthier and more attractive when they slept 8 hours a night compared to when they were sleep-deprived.) Up your odds of getting that much-needed beauty rest by drinking a little tart cherry juice. In a small study, when adults with chronic insomnia drank a cup of tart cherry juice twice a day they experienced some relief in the severity of their insomnia. Tart cherry juice contains melatonin, a sleep-inducing hormone triggered by darkness.