MELATONIN - Definition

Pronunciation:		`melu'townin
WordNet Dictionary

	Definition:	[n] hormone secreted by the pineal gland

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	See Also:	hormone, internal secretion

Products Dictionary

	Definition:	Melatonin Breakthrough discoveries about melatonin, a natural brain hormone, explain how it can help people sleep better, boost the immune system, reduce the risk of cancer and heart disease, fight disease, and promote health. Reprint. more details ...

Biology Dictionary

	Definition:	This hormone is produced by the pineal gland (located at the center of the brain) at night. It is believed to regulate the body's biological clock and reproductive cycles and has been found to improve the quality of sleep in elderly insomniacs.