That's amazing if true, because that means your sweat is hostile to the kind of bacteria that produces the smell we associate with old sweat. It's impossible to sweat distilled water, but maybe it's possible to sweat salt water with low content of fats and proteins, I really don't know. Sloths, for example, are known for having no body odor, so it might be possible for some people.

I'd love to know the mechanism for inhibiting bacteria breeding in skin grease. PH level?