A study says people who post too many "selfies" on Facebook may harm their real-life relationships. A selfie is a self-portrait, usually taken at arm's length or in a mirror. Britain's Birmingham University looked at how selfies affected people's relationships. Their study found that sharing too many selfies makes many people like you less. Dr David Houghton said only close friends and relatives don't mind those who constantly upload selfies. Wikipedia says: "In 2012, Time magazine noted that selfie was among its top 10 buzzwords." Celebrities like Rihanna and Justin Bieber are famous for uploading hundreds of selfies. People who post selfies may be shocked by the research. Wikipedia says people like selfies because they can control how they look in the photo. They want to show a flattering image that their friends will like. The research may show that the opposite is true.