Yeah, I mean it'll be harder to become a professional athlete or something, but you can surely do 99% of what people normally do in their lives. There are defi

Yeah, I mean it'll be harder to become a professional athlete or something, but you can surely do 99% of what people normally do in their lives. There are definitely 65-year-olds who are fitter than some of the 20-year-olds you see :-)