More Muscles, More Sex?

Today's USA Today had an article about muscularity and sex.  New research shows that well-muscled men are twice as likely to have more sex partners and flings than those with more slender physiques.  But when it comes to long-term relationships, slender men are more appealing to women because they are perceived as more faithful and romantic.

This is very interesting, and it shows that the strong desire of young men to gain muscle has evolutionary roots.