Science explains why beauty is in the eye of the beholder

Is that guy sexy? Is that woman beautiful? If you ask these questions to a group of people, they may have different answers, and a new study hints at why: Your perception of other people's attractiveness is mainly the result of your own experiences.

In the study of twins, researchers found that a person's environment plays a bigger role than genes in shaping whom they find attractive.

The idea that beauty is in the eye of the beholder has been around for a long time, said Laura Germine, a psychiatric researcher at Massachusetts General Hospital in Boston and lead author of the new study. But the scientific study of this idea has been limited, she said. [Seeing Double: 8 Fascina