I'm in Carolina USA and would add that sweating eliminates toxins from the body. I eat lots of salt and other electrolytes to replace what I lose by sweating. It's good for you.

That is excellent news for me. I've always liked a bit o' food on my salt . . . . .

In central Louisiana in July, we had many days with heat indices>100. Sweat would not evaporate to cool my body, but all my body knows to keep cool is to sweat. I lose copious quantities of water and electrolytes in said conditions. I resorted to a Camelbak full of ice to try to stay cool. Early August, and heat indices have moderated at least a little. Still, bike clothes are wringing wet after most rides, including shoes. My shoes are so wet that I'll leave my shoes outside to dry in the sun after rides.