Continuing research on human embryonic stem cells could identify how undifferentiated stem cells become differentiated. It is known that turning genes on and off is central to the process. Some of the most serious medical conditions are caused by abnormal cell division and differentiation.
Better understanding of how these processes are controlled at the genetic and molecular level may lead to:
Simply put, those who support human embryonic stem cell research believe it could lead to possible cures for many diseases, including:
Human stem cells could also be used to test new drugs. According to the NIH (National Institutes of Health, "to screen drugs effectively, the conditions must be identical when comparing different drugs. Therefore, scientists will have to be able to precisely control the differentiation of stem cells into the specific cell type on which drugs will be tested. Current knowledge of the signals controlling differentiation fall well short of being able to mimic these conditions precisely to consistently have identical differentiated cells for each drug being tested."
The need for transplantable tissues and organs far outweighs the available supply. Stem cells, directed to differentiate into specific cell types, could offer the possibility of a renewable source of replacement cells and tissues to treat many diseases.
One of the main objections to embryonic stem cell research has to do with the belief that using embryos tampers with life. People who stand strong behind this ideology believe that even for the purpose of medical research and the possibility of saving lives, it is wrong. For people who oppose embryonic stem cell research it is a matter of ethics and morals which outweigh the scientific potential.
There is no guarantee that forging ahead with embryonic stem cell research will produce the desired results. That, too, is a problem for some who oppose it. The utilization of embryonic stem cells, is at this point theoretical, unlike adult stem cells which have shown therapeutic results.
Understanding this issue before formulating an opinion is imperative. Stem cell research is a complicated issue, without doubt. Further investigation regarding the scientific and ethical viewpoints can only result in being more informed and knowledgeable, and the assurance that you are standing on the side of the issue which most strongly aligns with your beliefs.
Related Resources - Stem Cell Research
Read more extensive information on stem cell research, offering explanations of both sides of the argument.

