According to Common Sense Media's body-image study, Children, Teens, Media, and Body Image, teens who are active online worry a lot about how they're perceived. In fact, body dissatisfaction appears to be on the rise in the United States. A study by the Keep it Real Campaign found that 80 percent of 10-year-old American girls have been on a diet. Examples of negative teen body image are all over the Web. In YouTube videos, kids ask an Internet audience to tell them if they're pretty or ugly. They rate each other on Instagram. They bare themselves and beg for feedback on formspring.me. They edit their selfies and drink in advice about how to improve their online image.