Growth hormone is an important mitogenic growth factor that is synthesized, stored, and secreted by somatotropic cells of the anterior pituitary gland. Growth Hormone stimulates growth, cell reproduction, and cell regeneration. In children, Growth Hormone deficiencies can cause short stature, growth failure, and delayed sexual maturity. Adult Growth Hormone deficiency presents with reduced lean body mass, increased adiposity, reduced muscle strength, and ultimately premature mortality.