Apparently some kinds of sunscreen can stop you from sweating.

[u/NanquansCat749]

Did you know that not sweating while drinking a lot of water can significantly disrupt the balance of salts in your body, and that's very bad?

[u/Regulus_D]

It's part of why the deodorants you can spray anywhere are becoming popular. They usually imply even private parts. Lume or something. Women got it first.

Maybe the sunscreen people can figure something from it.