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 ...

When he announced his policy expanding federal funding of embryonic stem cell research, President Barack Obama was not timid about proclaiming its benefits. It would, he announced, hasten "a day when ...

Embryonic stem cells are harvested from four to six-day-old embryos. These embryos are either leftover embryos in fertility clinics or embryos created specifically for harvesting stem cells by ...

(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, ...