And no, it's not good looks, though we'd never say no to Channing Tatum...
Guys, if you've been working hard at the gym in order to win over the girl of your dreams, you can rest easy, because it turns out that even if you're really, really, really ridiculously good looking, you might not get the girl.
Yep, it turns out women actually care more about what's on the inside, so if you're a nice person and help others then you're more attractive in a girl's eyes than if you were just buff.
Though we guess it never hurts to be both, right?!
A recent study found that women are most attracted to those who are altruistic and when it comes to looking for a long-term partner, they're more likely to pick a man who's altruistic but not handsome over the opposite.
HOWEVER, when it came to shorter flings, being non-altruistic was ranked slightly higher!
“These findings make a substantial contribution to our understanding of the role of altruistic behaviour in human mate choice by including the previously unexplored additional variables of physical attractiveness,” the study, published in the journal Evolutionary Psychology, concluded.
They also added, "Overall, the results provide further support for the view that altruism acts as an important trait in mate choice, particularly for long-term relationships."
So there you go, if you're looking for a long-term partner guys, start volunteering with your free time!