HGH bụ hormone nke anụ ahụ na-emepụta n'onwe ya.N'ezie, a na-emepụta ya na nzuzo site na mkpụrụ ndụ akpụkpọ anụ dị na pituitary gland nke dị na ala nke ụbụrụ.HGH na-akpali ọtụtụ usoro metabolic na sel.HGH na-emetụta protein, abụba, carbohydrate na mineral metabolism.Ọrụ bụ isi nke HGH bụ ịkpali imeju iji zoo Insulin dị ka Growth Factor-I (IGF-I).