By blocking sweating and evaporation in the armpits, won’t anti perspirant prevent your body from cooling itself off, causing you to sweat even more?
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[sup]But it makes you sweat in better places.[/sup][/indent][/indent]
Yeah, the important part isn’t how much heat is lost in any given spot, but what the entire organism sheds. Besides, if you are clothed, evaporative cooling is not gonna be a big factor in your pits.