Oxytocin is a hormone that is released by the pituitary gland and it helps to stimulate the contraction during the labor and it reduces and controls the uterine bleeding.
Oxytocin is also called a love hormone as it is responsible for human responses associated with bonding and relation.
Breastfeeding excites the release of the oxytocin from the brain and it provides the baby to get the breast milk from breasts.