Stem cells are capable of both self-renewal and differentiating into other cell types. Stem cells are capable of both self-renewal and differentiating into other cell types. The human body is composed of many different cell types that form tissues and organs, each with specific functions vital to maintaining overall health. It was discovered some time ago that certain differentiated cells, such as those in the skin, intestinal lining, and blood, have a short lifespan and lack