The antioxidant properties of this molecule were only discovered in 1993, and it is unique in animals because at least four of its metabolites can also scavenge free radicals.
The antioxidant properties of this molecule were only discovered in 1993, and it is unique in animals because at least four of its metabolites can also scavenge free radicals. The level of this molecule in the blood can determine a person's chronotype (KROH-noh-"type"), and in the brain its main function is to inhibit the production of gonadotropin-releasing (goh-NAA-doh- TROH-pin) hormone by the hypothalamus. Aaron Lerner found that this molecule can lighten the skin pigmentation of frogs, and when most animals are placed in the dark the level of this hormone increases, allowing it to control circadian (sir-CAY-dee-un) rhythms. Derived from seratonin (seh-ruh-TOH-nin) and secreted by the pineal (pih-NEE-ul) gland, name this hormone that regulates sleep cycles in humans.
The antioxidant properties of this molecule were only discovered in 1993, and it is unique in animals because at least four of its metabolites can also scavenge free radicals.
melatonin [do not accept “melanin”]