Human Growth Hormone (HGH) is a small protein that is made by the pituitary gland and secreted into the bloodstream. Its production is controlled by a complex set of hormones produced in the hypothalamus of the brain and in the intestinal tract and pancreas.
The pituitary gland releases HGH in bursts; levels rise following exercise, trauma, and sleep. Under normal conditions, more HGH is produced at night than during day time.
Human Growth Hormone or HGH controls a number of functions in your body. HGH, produced by the pituitary gland, spurs growth in children and adolescents. It also helps to regulate body composition, body fluids, muscle and bone growth, sugar and fat metabolism, and possibly even your heart function. It is also known to be responsible for making you feel and look youthful.