It's also, I believe, a good example of how decades of obesity can deform a body.  Right now there's two hamily members, for example, preening on Facebook about finally getting their weight under control (ha, really) via WLS to where they're "just" small fats now, and both have similar whacked posture, those weird heads (I suspect that prolonged obesity permanently screws up facial features and skeletal structure), and of course, the mega-loose skin.