Attractive women make men behave more generously

Researchers separated 130 participants (of both sexes) into three groups -- sitting alone, sitting near an attractive man, or sitting near an attractive woman. The participants were then given the opportunity to donate to a fund they were told would be doubled and paid back out at the end of the game. Men seated near an attractive woman donated 28% more than when they were seated near a man; women donated the same amount regardless of whom they were near. Follow-up experiments also found that men pitted against each other were more likely to be competitive when a woman looked on, as well as to dedicate time to charity or to promise to give blood.