Melatonin is a covalent bond molecule made by C13H16N2O2. It weighs 232.28 g/mol. It is a class of Acetamides and synthesized from the essential amino acid L-Tryptophan. It is a molecule that is a derivative of serotonin, a hormone that is also synthesized from L-Tryptophan. Melatonin is synthesized by and comes from the pineal gland, and the suprachiasmatic nucleus stimulates its production. It is most known for regulating your circadian rhythm and making you sleepy. But it also times menstrual cycles, controls blood pressure, acts as an antioxidant and anti-inflammation agent. It is often used to treat epilepsy, sleeping disorders, and benzodiazepine and nicotine withdrawal. Melatonin is produced the most at night time, and that is why you hear people say don’t use technology at night because the blue light can inhibit melatonin production which may cause sleeping deprivation.