(i) It acts as a center of the autonomic nervous system.
(ii) acts as the center of hunger, thirst, sweat, sleep, anger, suffering, hatred, love, anxiety etc.
(iii) It regulates body heat.
(iv) It secretes ADH.
(v) It secretes two types of neurohormones namely vasopressin and oxytocin.
(vi) It regulates tropic hormone secretion with the help of neurohormones.