How are electrolytes lost in sweat/why is salt?

[wasteofo2]

I understand that when you sweat, the water is to cool you and urea is excreted because it's a waste, however I don't know why salt is excreted, nor to I know how electrolytes are used in the process of sweating. Would someone care to enlighten me?

[iansmith]

probably because the water your are sweating is not pure. it is coming out of your body and it is picking up electrolytes as it comes out.

[nautica]

Yes and water moves with Na and v/v.

Nautica