06 November 2006 23:30
![](http://blogmarks.net/screenshots/2006/11/08/3919b21274a5e959f8ca84bb299e7f54.png)
Human Growth Hormone (hGH) – History, Side-Effects, Use in Baseball
![](http://blogmarks.net/img/default-gravatar.gif)
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.
1
(1 marks)