A new study finds that married men tend to have lower testosterone levels than single, unmarried men. The research, performed on men in Kenya, supports previous similar studies from North America. Also, the study found that men with more than one wife had even lower levels of testosterone. [Mitt Romney: Not a "real" man! -Ed.] However, researchers suggest that this could be due to the fact that in Kenya, it's "older men — who typically have lower testosterone levels — who have the social status and wealth required to obtain more than one wife." Yeah, well, it's sorta like that here, too, except swap the word "wife" with "girlfriend." [ScienceDaily]