Researchers are examining same-sex relationship dynamics to see how to improve heterosexual couples' success rates, reports The New York Times. The differences? Heterosexual women are delegated not only housework, but relationship work — and they're tired of carrying the responsibility for two. Additionally, heterosexual couples tend to become more physically agitated — elevated heartbeat and adrenaline surges — than their same-sex counterparts. The answer? Perspective. To find a little, click here.