Melatonin is a hormone that tells the body it's time to sleep. In people without sleep problems, the body follows a roughly 24-hour biological clock called the circadian rhythm.

Most people think of melatonin as a natural sleep aid, like chamomile tea in pill form. But melatonin is also a hormone naturally produced by our brain, and as long as it is a hormone, even a very small amount, it can have a huge impact on the human body.

As we known that melatonin is essential for good sleep. This unique hormone is produced by the pineal gland located in the middle of the brain and works with the rhythms of the sun. More melatonin is produced when the sun goes down and less melatonin is produced when the sun rises. It heard like amazing story. Adding melatonin to your diet may improve sleep, researchers say.