CNN — (CNN) — Here is some background information about stem cells. Scientists believe that stem cell research can be used to treat medical conditions including Parkinson’s disease, spinal cord injury ...

To the editor: I keep reading letters with assertions about what Amendment 2 does and does not allow. The language of the proposed amendment is clear enough to be quoted and understood. The first ...

- Stem cells can be manipulated, under certain conditions, to become mature cells with special functions, such as the beating cells of the heart muscle or insulin-producing cells of the pancreas.

There are tens of trillions of cells in the human body, and new cells are constantly forming as older cells age and die. But sometimes, cell growth and replication doesn't stop when it should. These ...