Among many cells, there is a type of cells called "universal cells", which are stem cells. Stem cells are among the most effective and powerful cells in the human body and can differentiate into different types of cells. and plays an important role in maintaining good health Stem cells have the ability to self-renew and differentiate into multiple lineages. This means that new cells can be continuously produced and can also be differentiated into different types of cells, such as muscle cells, nerve cells, skin cells, etc. This feature gives stem cells the opportunity to be widely used in the medical field. As tissue repair, organ transplantation, etc.