This hormone is manufactured by cells of the pineal gland.

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Melatonin is produced by the pineal gland, which is located in the brain. Its production is regulated by the amount of light exposure a person receives, with more being produced during periods of darkness. Melatonin helps regulate sleep-wake cycles and is often used as a supplement to regulate sleep. ADH is produced by the hypothalamus and stored in the pituitary gland, and helps regulate water balance in the body. Prolactin is produced by the pituitary gland and is involved in lactation and milk production in females. Aldosterone is produced by the adrenal glands and helps regulate the body's salt and water balance.

This Hormone Is Manufactured by Cells of the Pineal Gland