I seem to remember a study investigating the correlation between bodily symmetry and athletic prowess - those more 'balanced' achieved better results. And facial symmetry has been perceived as an advantage in various aspects of life for most of human history - the main one being attractiveness to a sexual partner - and so I'd expect there is an increased probability that those with 'balanced' faces, might just well have 'balanced' bodies, as well. Still, on the face of it (pun intended), I doubt Van Gogh could run a mile - and chopping a bit of his ear off didn't help his looks - but, by God, he contributed to the general well-being of humanity with his art. That fact gives me hope ...