PUBLIC MARKS with tags growth & steroids

Human growth hormone (hGH) is a polypeptide hormone synthesized and secreted by the anterior pituitary gland which stimulates growth and cell reproduction in humans and other vertebrate animals. In the liver, hGH converts to insulin-like growth factor-1 promoting growth. Secretion levels are highest during puberty and decrease during adulthood and are directly related to aging.

The next or perhaps more accurately, the newest generation of performance-enhancing drugs in sport is insulin-like growth factor-1 or IGF-1. The first synthetic version of IGF-1 approved for sale in the United States was Increlex.