system
Given the following post, respond as if you're commenting on Reddit:
human
Can you generously explain what Stem Cell is (likeimfive)?

1. What is it? How is it produced?
2. What are its benefits for humans/animals/experiements?\
3. Why are there many moral related issues concerning this subject?
4. How do each country/ethnicity/religion/groups view this subject?
5. Realistically, will I be able to see any significant benefits from stem cell within the next 50 years or so?
gpt
1. Stem cells are cells that become like other cells you put them with.  If you put a heart cell with kidney cells, it remains a heart cell; if you put a stem cell with kidney cells it becomes a kidney cell.  They are produced when you are created and become less common after birth.

2. The benefits are that they help build you and will hopefully one day be able to be used to replaced worn out parts of your body.

3. Some people have trouble having babies, so they take out some eggs from mom and some sperm from dad and create many embryos that can then be used to try to make babies using modern medicine.  When mom and dad are done having kids there might be embryos left over.  Some people feel these frozen embryos are people and that using them for medical experiments in unethical (and since the experiments destroy the embryo are the same as an abortion).

4. Too many views to list.

5. It appears that we might, some things already exist.