Sleep is a basic human need and melatonin is a key player. But there is a lot of conflicting information out there about melatonin, and it can be tricky to sort out facts from myths.
Melatonin is a hormone that your brain produces in response to darkness. Melatonin works in the regulation of your circadian rhythm (also known as sleep–wake cycle). At night, your melatonin increases helping you to feel sleepy.
1. Melatonin supplement is the same as the melatonin the body produces: Myth.
Synthetic melatonin is the most popular over-the-counter sleep aid. In 2020 its sales in the US were over $800 million. However, studies are not conclusive to show it has real benefit. Supplements don’t work the same way as the melatonin your body produces.