Anon's co-worker would probably be willing to try and help him, especially given that he was helping them. The social nature of humans is our low-key superpower.
The social nature of humans is our high key superpower. It’s an increasingly common position that our individual intelligence is at least in significant part a side effect of an evolutionary arms race in an increasingly complex social environment, and that this was added to by the multilevel selection dynamic of increasingly cooperative groups. See EO Wilson for more details, as he’s one of the more prominent biologists who studied the phenomenon.
Sweating is what allows you to survive in most climates as well, what is wrong with it on that front? It even helps with pheromones delivery, double whammy! )
Well, its okay not to win in the natural selection) Luckily for people we do not have to adapt to an environment, we have means to either change it or move to another, more fitting one. You are evolved for higher latitudes, did you consider moving to an icy region?