Greatest stimulator for ADH secretion

Antidiuretic hormone is the hormone secreted by cells of the hypothalamic nuclei and stored in the posterior pituitary for release as necessary; it stimulates contraction of the muscular tissues of the capillaries and aerioles, raising the blood pressure, and increases peristalsis, exe some influence on the uterus, and influences resorption of water by the kidney tubules, resulting in concentration of urine. Its rate of secretion is regulated chiefly by the osmolarity of the plasma.Ref: Ganong&;s review of medical physiology; 24th edition; page no:-313