hi doma,
newtonian medicine?
far as i could see, he lost weight and his knees were strong enough to bear the weight of his 150lbs, where they couldn't bear the weight of 290lbs.
you think the doctors didn't tell him to lose weight?
as far as i know, doctors don't run exercise class.
it's a cool story without assigning to it some magical characteristic. it's not terribly hard to figure what occurred here. no medical degree required.