Agreed that the human body is adaptable, but I would argue that it's also adaptable to an idle lifestyle of 14 hrs/day in a chair. There are many examples of i

Agreed that the human body is adaptable, but I would argue that it's also adaptable to an idle lifestyle of 14 hrs/day in a chair. There are many examples of individuals with indolent lifestyles or office jobs who are living well into their 70s and beyond. My own father is an example - never walked, never exercised, smoked for 50 years - and is pushing 90, albeit not in great health but mentally still sound. I think most of us would enjoy a better quality of life if we ate optimally and stayed active, but genetics seems to be a key factor nonetheless; luck of the draw.