More and more evidence is being found of the hypothesis that in the adult organism there is a central depot of “spare parts” in the form of universal multipotent stem cells of the bone marrow, which come to help in those critical for the body situations when local tissue resources are not enough. Like the ambulance team, the bone marrow stem cells, also referred to as mesenchymal cells in medicine, are able to cover considerable distances to get into the catastrophe zone, find areas of damage and patch up the defects of various organs and tissues. I really hope that the price, if controlled by big pharma, will be affordable for people of any social status.