ADH, or antidiuretic hormone, is a peptide hormone produced by the hypothalamus and released by the posterior pituitary gland. It plays a crucial role in regulating water balance in the body by controlling the reabsorption of water in the kidneys, thus influencing blood pressure and fluid homeostasis. ADH's secretion is regulated by factors such as blood osmolarity and blood volume, linking it to overall hormonal regulation within the body.
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