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Stem Cell Article (1) When were stem cells first taken from a human embryo? (2) Why is obtaining stem cells from a human embryo so controversial? (3) What was/is the source of human embryos for stem cell research? (4) What is a stem cell? (5) What diseases do we think we could treat with stem cells? (6) Dr. Thomson is in the news again because he has turned ordinary skin cells into stem cells. How did he do this?
 * 1998 was the year when the first stem cells were taken from a human embryo
 * It is controversial because some people ask the question "when are we truly alive?" Some say when we are conceived, and others when we exit the womb. This creates a controversy because if it is when we are conceived then when you take the cells you are murdering the baby
 * Scientists would usually go to fertility clinics and use stem cells that were going to be killed anyway.
 * A stem cell is a cell that has the potential to become any of the 220 kinds of cells in the human body
 * We believe that we can heal Alzheimer's, Parkinson's, and other brain diseases that result from damaged or non-existent brain cells as well as diseases such as cancer's which have the same problem as the brain diseases.
 * He managed to turn the skin cells to stem cells by adding four genes to the DNA.