Human growth hormones or HGH is a natural occurring hormone in the body’s pituitary gland located in the brain.  From the time a person is born until their mid-20s, this hormone is busy at work helping a person grow and develop. However, the pituitary gland shuts the production of HGH off so that a person will not grow any taller after a certain age – somewhere in their 20s. This is why we do not see extremely tall individuals; in the rare case of extremely tall individuals, it is usually a case of the pituitary gland that has not been properly...