I thought this too, but apparently going faster to warm up is not a consideration in their stupid heads. The fatty I know who wants to lose weight went out when it was kinda cold outside. I did too, and once I ran the cold felt good. He complained it was too cold so he cut his walk short, and I asked him if he tried to warm up by going faster and he said no. This fat tub of lard was COLD. So what the fuck is the point to store all that fat if it doesn't even keep you warm? I think that they are aware that moving their jiggly disfigured bodies will create warmth, but dismiss it because it would be too much work and every last one of them are whiny little bitches