Folks that watched it on television thought Kennedy won because Nixon was sweating and Kennedy was looking debonair and so it's sort of like, defined how powerful television was for presidential politics going forward.
Research does show that people perspire more as they get fitter because their bodies adapt to dealing with the effort and sweating more helps them keep cool.
Sir, I only meant to say that Lieutenant Courtenay is depressed. -I will not leave wounded soldiers freezing or sweating under canvas because one junior officer is depressed!
At that point, your heat regulatory system can essentially quit, which stops you from sweating, as your body tries to keep water around your vital organs.
I mean you will never catch me doing that. But, I have seen you sweating. Well, I guess so. Ever seen a pig do that? Have I seen a pig sweat? Well, I guess not. But what's your point?