What stimulates the breasts to produce milk?

Question

Quizplus · Accepted Answer

Prolactin is the hormone responsible for stimulating milk production in the breast tissue. It is produced by the pituitary gland in response to the suckling action of a baby, which triggers the release of prolactin from the brain. Oxytocin is responsible for the letdown or release of milk from the breast, but it is not directly involved in milk production. Colostrum is the first milk produced after birth and contains high levels of antibodies to boost the baby's immune system. HCG is a hormone produced during pregnancy that can stimulate the production of estrogen and progesterone but does not directly stimulate milk production.

What Stimulates the Breasts to Produce Milk