The supply of blood for patients and emergencies has always fluctuated. Generally it is dependent on adequate donations from the public. A more dependable source would be useful. While local and temporary blood shortages have occurred periodically, the nation’s blood supply generally is considered adequate. There is also a problem of genetic compatibility. In a neat bit of cellular wizardry, human skin cells have been turned into blood cells. A donor could then supply blood cells d=from his own skin cells and this about compatibility issues. The research could have huge implications for blood-related diseases such as leukemia and lymphoma, and could also eventually lead to new treatments for other types of tissues inside the human body. If skin can be made into blood why now not other cells?