Melatonin, which helps regulate your circadian rhythm, plays an important role in preparing you for sleep. Your body naturally produces the hormone, but it’s also available as a supplement.

Melatonin is a hormone created in the brain that’s also available in supplement form as a sleep aid. Learn more about how it works and its potential downsides.

Millions of Americans take melatonin to fall asleep. It’s one of the most used supplements in the U.S. But to get the most from it, it helps to understand how it works and what it can and can ...

Melatonin supplements have been characterized as one of the “least toxic” medications. Adults and caregivers still should not use them recklessly and should be aware of the side effects.