Reply #4: basically, Stem cells are cells which have not been "programed" to be any

[Enquiringkitty]

particular type of cell. If injected...say...in the spinal cord, it will take on the characteristics of the surrounding cells and multiply....thus replacing damaged cells and hopefully healing the injury.

The problem comes in when how the cells come about are brought up.
Stem cells are zygote or embryo cells. The one we are allowed to use now are ones which were retrieved and fertilized for couples and they weren't used or were retrieved from fetus' which had died and miscarried.
Christians say they are living beings with potential and researchers say that with the embryos of couple who have had children, the ones still frozen and unwanted will just go into the incinerator like any other tissue which is removed from the body....why not use them to help people.