Oxytocin is a hormone secreted through the posterior lobe of the pituitary gland, a pea-sized structure at the bottom of the brain. it's sometimes known as the "cuddle hormone" or the "love hormone," because it's far launched while humans snuggle up or bond socially. Oxytocin is a peptide hormone and neuropeptide. it's far normally produced within the hypothalamus and released through the posterior pituitary. It performs a role in social bonding, sexual duplicate, childbirth, and the period after childbirth. It's sometimes known as the "cuddle hormone" or the "love hormone," because it is released when people snuggle up or bond socially. Even playing with your dog can cause an oxytocin surge, according to a 2009 study published in the journal Hormones and Behavior. But these monikers may be misleading.

Oxytocin can also intensify memories of bonding gone bad, such as in cases where men have poor relationships with their mothers. It can also make people less accepting of people they see as outsiders. In other words, whether oxytocin makes you feel cuddly or suspicious of others depends on the environment.  In women, oxytocin is responsible for signaling contractions of the womb during labor. The hormone stimulates the uterine muscles to contract, so labor begins. It also increases the production of prostaglandins, which move labor along and increases the contractions even more. Because of this effect, synthetic oxytocin (pitocin) is sometimes used to induce a woman to start labor if she cannot start naturally, or it can be given to make contractions stronger if a woman's labor is slowing.Once the baby is born, oxytocin promotes lactation by moving the milk into the breast. When the baby sucks at the mother's breast, oxytocin secretion causes the milk to release so the baby can feed. At the same time, oxytocin is released into the brain to stimulate further oxytocin production. Once the baby stops feeding, the production of the hormone stops until the next feeding.

For men, oxytocin function is less important, but it does have a role to play in moving sperm. It also appears to affect the production of testosterone in the testes. Studies of oxytocin also have found that it is an important chemical messenger that controls some human behaviors and social interaction. It is oxytocin that triggers the bond between a mother and an infant, and it may also play a role in recognition, sexual arousal, trust, and anxiety. Some research shows that the hormone may affect addiction and stress as well.