HGH is Human Growth Hormone, a natural hormone produced in the pituitary gland of the brain. HGH is considered “the key” hormone because it controls so many functions. It’s responsible for youth, vitality, energy and all of the health benefits we associate with youth. Dr. Daniel Rudman’s study in the New England Journal Of Medicine demonstrated the remarkable ability to reverse the effects of aging upon the human body with the employment of HGH - Human Growth Hormone! Due in part to his efforts, Dr. Rudmans’s study saw the effects of HGH upon overweight men between the ages of 61 and 80 years of age.