Why do people take selfies? Researchers at Syracuse University in New York tried to answer that question. They came up with some surprising answers. People who post selfies and use editing software to make themselves look better show behavior connected to narcissism, the Syracuse researchers said. Narcissists are people who think very highly of themselves, especially how they look. Ji Won Kim, a doctoral student at the university’s S.I. Newhouse School of Public Communications, worked on the study. She said because social media can be superficial, it is a good place for people to work towards satisfying their own vanity. By superficial, she means social media is mostly used by people to share unimportant information about their lives -- not deeply personal issues.