Abstract Adaptation to motherhood includes maternal behaviour and lactation during the postpartum period. The major organizing centres of maternal behaviour and lactation are located in the hypothalamic medial preoptic area (MPOA) and the arcuate nucleus. respectively. Insulin-like growth factor I (IGF-I) is an effector of the growth hormone axis; however. https://www.johnpirillo.com/product-category/mens-beauty/