How can physiological changes not have occured over rthe past few hundred years due to a more sedentary lifestyle when we know that physiological changes have happened to the female body in that short space of time due to interference from male Dr.s during childbirth.
It's quite easy to spot a desk dweller when you watch people walking down the street.
It's quite easy to work out who plays sports such as rugby / hockey, who swims, who runs, who is the gymnast.
3,000 years ago, survival of the fittest but today in this country just about anyone and everyone survives. I work with those who wouldn't have survived 3,000 or even 300 years ago. Non of them can run, some can't walk, those that can can't walk far, a lot of this is down to never having had to or been encouraged to but in part it's down to not having the physical capacity to. There's a line from these people to the Mo Farrahs with all of us at some point along it.
I disagree that bad feet / knees etc is a result of childhood footwear. I hardly who shoes as a child, just wasn't the done thing then and there. I have congenitally deformed feet, nothing to do with foot wear.
I can run, I do run. I've been told that I'm not biomechanically built for running so I'll never be up there with the top runners or even very close.
Our bodies adapt to the work that we give them to do, I find sitting on a chair physically painful, I haven't had to sit down much in my working life, I can stand and move around all day.
It's how we use our bodies in the here and now.
I wasn't built to be a model, I'm too short and too fat.