Melatonin is secreted by a tissue called the "pineal gland" in the brain, and its main role is to help the body maintain sleep-wake rhythms (also called circadian rhythms).

Melatonin, a hormone produced in the pineal gland and also found in plants and microorganisms, was discovered and named by American dermatologist Aaron Lerner in 1958 CE and is primarily associated with circadian rhythms and seasonal reproductive regulation.

2020 has gone a long way in consolidating the importance of dietary supplements to support a healthy immune system, I think.People talk about supplements more actively than at any time in history. Consumers' recognition of the benefits of supplements will continue to have a significant impact on the industry in 2021.