Growth hormone (GH or HGH), also known as somatotropin or somatropin, is a peptide hormone that stimulates growth, cell reproduction and regeneration in humans and other animals.It is a type of mitogen which is specific only to certain kinds of cells.rowth hormone (GH or HGH), also known as somatotropin or somatropin, is a peptide hormone that stimulates growth, cell reproduction and regeneration in humans and other animals.
While at least half of prisoners have some mental health concerns, about 10 percent to 25 percent of U.S. prisoners suffer from serious mental illnesses, such as major affective disorders or schizophrenia, the report finds.
Nevertheless, mentally retarded people may be disproportionately represented in America's prisons. Although people with mental retardation constitute somewhere between 2.5 and 3 percent of the U.S. population, experts estimate they may constitute between 2 and 10 percent of the prison population.