[HPsquared]

What fraction of people do any substantial physical work in an average day? I reckon about 25%.

[digdugdirk]

This might be more a reflection of your social bubble. I'd reckon the percentage would be more likely to be flipped. Especially if we're talking about a global population.

[pigsty]

Men also generally stink more. Just being too warm for a few minutes means smelly armpits and crotch for loads of dudes.