http://vvedndyt433kopnhv6vejxnut54y5752vpxshjaqmj7ftwiu6quiv2ad.onion/wiki/Melatonin
Interactions N-Acetyl-5-methoxytryptamine (also known as melatonin [2] ) is a hormone of the tryptamine class. It is found in animals, plants, fungi, and bacteria. In animals, it functions as a hormone that anticipates the daily onset of darkness; [3] it may have different functions in other organisms.