A type of love hormone called Oxytocin which is important in the regulation of social and maternal behavior is also found helpful in treatment for many mental health disorders including postpartum depression. The oxytocin receptor cells are present in the brain area and are thought to be involved in the regulation of maternal behavior. Moreover the expression of oxytocin receptors in these cells are only present when estrogen is also present. This implies that these cells are involved in inducing maternal behavior. In addition it confirms what many recent human studies have shown: there is a connection between altered expression of oxytocin
