The human body is innately programmed to heal itself. Taken from the fat or bone marrow of a patient, these stem cells have the ability to transform into any other type of cell within the body. Full of growth factors, these cells are harvested from one area of the body and then injected into the site of the injury or trauma. They then become concentrated and stimulate new growth. According to the Academy of Orthopedic Surgeons, this promotes a faster healing process by decreasing the time that it would take for these cells to travel to the site of injury on their own.