Stimulus for prolactin release is ?
Ans. is'd'i.e., Nipple stimulation[Ref: Human physiology p.383)Prolactin is the only pituitary hormone which is primarily under inhibitory control of hypothalamus .Its secretion is suppressed by dopamine (Prolactin inhibitory substance) secreted by hypothalamus.
Dopamine
Hyperglycemia
Sleep
Nipple stimulation