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Eat: Honey

The sweet stuff boasts compounds that reduce levels of orexin, another neurotransmitter that promotes wakefulness, says neurologist W. Chris Winter, MD, who suggests stirring a little honey into chamomile tea. Not only does chamomile have relaxation-promoting properties, but it warms you up. Then your temp cools down, mimicking the body's physiological signals as it prepares for sleep. Plus, he adds, a regular habit of tea before bed will eventually cue your brain that it's snooze time.