What Does ADH Do?


Quick Answer

ADH, or anti-diuretic hormone, aids in controlling blood pressure by conserving the amount of fluid in the body's bloodstream. The hormone targets kidneys and blood to conserve water.

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Full Answer

Anti-diuretic hormone is synthesized by the hypothalamus in the brain, then it is stored in the pituitary gland. During times when a person's blood pressure is too high, the pituitary gland releases small concentrations of ADH into the bloodstream. The hormone acts on the kidneys to increase their permeability to allow water to be conserved and return to the bloodstream. At high concentrations, the hormone can also cause vasoconstriction of blood vessels to quickly increase blood pressure.

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