Human Growth Hormone (HGH for short) is produced by the pituitary gland. It spurs growth in children and adolescents, helps regulate body composition, body fluids, muscle and bone growth, sugar and fat breakdown and may also be associated with your heart’s function. Beginning in middle age, the pituitary gland slowly reduces the amount of growth hormone it produces. Some people believe that taking HGH will will keep them looking youthful. Experts however recommend against using HGH to treat aging or age-related conditions.