Stem Cells and What They Do
Our bodies are made up of over 200 specialized cells that carry out very specific functions. Stem cells can replicate themselves and they can also produce one or more of these special cell types. Although there are different types of stem cells, generally speaking, a stem cell is not yet specialized to perform a specific task in the body. The ability of these cells to differentiate makes them valuable to scientists, who want to use them as treatments to repair damaged cells or to replace cells that have been lost.