Unfortunately in some cases the mind deteriorates too, not just the body. I knew a 90+ year old women who was pretty sane, but after two years she became retard

Unfortunately in some cases the mind deteriorates too, not just the body. I knew a 90+ year old women who was pretty sane, but after two years she became retarded. She was asking me something, I was answering and after 5-10 minutes she was asking the same question again. Btw, I think that Grace Murray Hopper can be considered a model, too.