January 2009 Blog Posts (1)

IGF 1 is extremely close to insulin in chemical structure, hence the name insulin-like growth factor 1. It plays an important part in cellular division much like the hormone HGH, and its release from the liver is stimulated by HGH. In turn, IGF 1 helps stimulate the production and release of HGH, so the two are constantly doing a loop and feeding off of each other. When HGH levels become low, it obviously effects levels of