- Breastfeeding baby
The main function of the milk glands in the female breast is feeding the baby with milk. During lactation the milk flowing from the milk glands corridors through milk to the nipple. Milk production is influenced by the hormone prolactin. This hormone prepares the breasts during pregnancy even before the new job they will have given birth: the influence of prolactin, the quantity of milk in the breast tissue is greater. When a baby sucks the nipple, or sometimes even when the mother hears her baby cry, the hormone oxytocin is released into the body of the mother. This squeezes the muscle surrounding the milk glands to contract, allowing the milk to the nipple forthcoming. Both small and large breasts tend to produce enough breast. The interaction between mother and baby adjusts the amount of milk produced per day, usually just to the needs of the baby.
- Sexual function
Many men find attractive and female breasts may become sexually aroused by seeing or touching of breasts. There are therefore special clothes and underwear designed to emphasize the breasts. Bikini models are also popular by the fact that these men excited. Women may also be sexually aroused by the fact that their partner during sexual contact stimulates the breasts. These facts could explain that during the evolution of female breasts developed.
