I know people don’t always believe me, but there was actually a time when organ banks relied on people dying.  A lot more people died back in those days of course, so there was a ready supply of bodies.  And many of them were registered donors.  That means they were willing to let people harvest their organs if they died.  Yes.  Lots of people were walking around with the heart or lungs someone else used until the day they died.  Thank God we got modern technology.