Stem cells are biological cells that are found in all multicellular organisms. In adults, stem cells act as an internal repair system replenishing adults tissues. In a developing embryo, stem cells have the extraordinary ability to develop into a more complex cell or remain a stem cell that will be used later for repairs.
Scientists and medical researchers believe that stem cell therapy could radically improve the medical treatment of human diseases. Possible diseases or ailments that could be treated with stem cells include blindness, deafness, dental anomalies, Alzheimer's, Parkinson's, muscular distrophy, diabetes, Chrone's disease and more. However, stem cell research is controversial because often times stem cells are harvested from embryos that were produced only to be destroyed.
Personally, I think stem cells are incredible. There is no reason to not research stem cells and use them in effective ways, and if we can harvest stem cells from undisputed sources then that's even better.
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