Melatonin is a hormone secreted by the pineal gland, a pea-sized gland at the base of the brain.
The exact function of melatonin is still poorly understood, but it is critically involved in regulating the body's circadian rhythms-the natural biorhythm of hormone secretion-as well as the sleep/wake cycle. Release of melatonin is stimulated by darkness and suppressed by light. It appears that some people may under-produce melatonin a night when it is needed, and over-produce it during the day when it should be low.
Natural Factors Melatonin supplement can help to provide a more restful and natural sleep without any drowsy side-effects that sometimes result from taking chemically produced pharmaceutical sleep aids.
