The human growth hormone (HGH) is used as a treatment for physical aging, but the question is: does HGH work? To answer this question for different conditions and different types of growth hormone therapy is to try to navigate a maze. begin to understand that human growth hormone, a hormone essential for normal people is produced by the pituitary gland. Children and young people as a growth hormone regulates the adults, and emotional stability of bone density, blood sugar, fat metabolism and storage, power and resistance play an important role in the regulation.