Add Yahoo as a preferred source to see more of our stories on Google. Here is some background information about stem cells. Scientists believe that stem cell research can be used to treat medical ...

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 ...

While you may feel like the same person day after day, science tells a fascinatingly different story. Your body is in a constant state of renewal, shedding old cells and generating new ones across ...

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 ...

- 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.