What exactly are stem cells and how are they used?
Stem cells have the potential to develop into many different cell types in the human body. The cells can theoretically divide and multiply without limit to replenish certain cells as long as the person is still alive. During the division of a stem cell, each new cell has the potential to remain a stem cell or become a different kind of cell with a specific function. Examples include muscle cell, brain cell, or a red blood cell.