Thou Shall Not Die: Research Trying to Control Aging If we could change the body at regular intervals to keep it always young, it might happen that our brain would never age. It's technically not that difficult, we might soon be able to transplant entire bodies � although we would probably be paralyzed from the head down, despite some recent progresses in neuroregeneration [Cheng et al., 1996]. Robert White has already tried in animals � in a dog and in monkeys � to separate the head from the body and then insert the head in a new body [White et al., 1996]. (Check this for more on head transplants.) Notice the fact that I call it body transplants and not brain or head transplants because size doesn't matter here, for me the brain is us, and can never be changed, but the body can, and therefore it's the body that is transplanted.