15On Stem Cells
People freeze their kids’ cord blood because it contains stem cells. Stem cells are not like your usual blood cells. For instance, your liver cells contain all the same DNA as your other cells but, in essence, can only perform the functions that liver cells do. It can hardly turn
into a nerve cell or a kidney cell. A stem cell, on the other hand, are undifferentiated cells that can still transform into any type of cell possible. The particular kind of stem cells found in the blood are called perinatal stem cells.