Prone to tossing and turning? Eating foods high in magnesium can help you drift off faster and stay in that restortative state, according to researchers at Edinburgh and Cambridge Universities. Magnesium regulates circadian rhythms, so you get sounder, more satisfying sleep. Dark chocolate is a great source of magnesium, as are a multitude of other foods we've highlighted below.

Check them out if you haven't stopped reading at the mention of dark chocolate.