NPR begins a celebration of sweat — what it's made of, where it comes from and what it smells like. Spoiler alert: most of the time it doesn't... The importance of sweat: We need it to keep cool LEILA ...

You’ve probably heard: “Sweat it out, and you’ll lose weight!” But is that really true? Does sweating help you lose weight, and does the amount of sweat on your workout clothes really reflect how much ...

We get it: There are times when you're in a social situation and the last thing you want to be doing is sweating. Hyperhidrosis is the medical term for excessive sweating in the underarms, face, scalp ...