Studies reveal that hormonal activity in a father increases during his partner's pregnancy, and more so if he is present at the birth and closely involved afterwards. Hormones are chemicals secreted by an endocrine gland or some nerve cells that regulate the function of a specific tissue or organ. They are essentially chemical messengers that transport a signal from one cell to another. In a way, they tell us what to do, how to act. Prolactin, vasopressin, and oxytocin are among the hormones that are found at higher levels in men around the time of birth.
