The order of events may not happen in this exact order but often the liver is no longer able to do it's job, the skin and whites of the eyes may turn yellow, the kidneys fail and the body will start...
I don't think it can, but that's just me, maybe you could just be too old, or too weak, or in need of vitamins. But Hey, I'm no scientist, maybe you should do some more research on that on your own....
It shuts down because you need nutrients to survive, without them our body would completely wither away. You are depriving the body of its need life support, once you take that away, everything...