Andrew Huberman· PhD
if you're more heat tolerant it's because you have more of a particular class of sweat gland called the echine sweat glands the sort of saltwater sweat glands not the lipid stinky armpit sweat glands called the arrine ones the acine ones you have a higher fraction of them that are inovated meaning that the signals from your brain that say your core is too hot can then make you sweat