The opposite of that spectrum is here in Florida. Lower surface area per volume means less area for sweating which leads to greater heat retention. I am 6'1 155 lbs. I like to force my fat coworkers to stand outside and converse just so I can watch them sweat while I stay comfortable. I take sadistic pleasure in making them feel like a disgusting fat piece of shit. Heh. I also make them take the stairs instead of the elevator whenever possible. They don't like to admit they can't do it. I can go 5 flights of stairs, 2 stairs per step, at a brisk pace, without pulling on the railing, and I usually end up at least a whole flight ahead with an elevated heart rate and deeper breathing. The fatties however are dragging their bodies, sweating profusely, and breathing heavily. It's great.