(1) the role of the mammary gland: lactation mammary gland under the action of prolactin secretion of milk, stored in the mammary gland of the gland. Oxytocin can make mammary gland surrounding myoepithelial cell contraction, have led the lactation breast milk.

(2) the role of the uterus: oxytocin has a strong role in promoting the contraction of the uterus, but the pregnancy is more sensitive to the uterus. Estrogen can increase the sensitivity of the uterus to oxytocin, while progesterone is the opposite.

(3) the role of shyness and autism in social situations: oxytocin can help people in social situations and be left out in the cold. Oxytocin, however, has no effect on the person who is confident.

(4) when the mood is open or there is a strong sense of belonging, the heart will secrete oxytocin, the pressure also get relief. At the same time, a large increase in the amount of oxygen in the body tissue.