Darkside said:

Wouldn't sweat act like a lubricant? Depends how much you are sweating.

Actually sweat work the opposite, causing friction. It's a natural response of the body in case of stress, so in case you're holding on a rope to climb and your palms sweat, the

grip won't slip. That's why athlethes doing the high bar and circus acrobats on the trapeze uses special gloves and/or chalk powder to lessen the grip and allow them easy movements without scorching their palms.

Now THIS is making sense of nonsense!