Eli5 what’s the purpose of sodium or salt in our sweat? I understand sweating is supposed to cool us down but why is there salt in sweat.

Question

Eli5 what’s the purpose of sodium or salt in our sweat? I understand sweating is supposed to cool us down but why is there salt in sweat.

In: Biology

Answer 1

It’s all about maintening a constant internal environment. Your bodily fluids have salt in them. If you sweat pure water, the fluids would get too salty. The easiest way to avoid this is to sweat salt along with the water