Body Project (Dissonance Intervention) is a prevention program designed for high school and college-age girls using four weekly one-hour group sessions or two two-hour sessions. Groups consist of 5-10 young women. Through a series of verbal, written and behavioral exercises, the program attempts to create dissonance in participants by engaging them in a critique of the thin ideal. Participants are also engaged in body acceptance exercises and role-plays to counter thin-ideal statements and resist peer pressure. The two types of facilitators who lead the groups define two versions of the program. The first version is led by clinicians with graduate training in a clinical mental health discipline, while the second version is led by college peer educators with advanced undergraduate qualifications and extra training. Both versions use activities that are counter-attitudinal to the thin ideal and use motivational enhancement, skill acquisition, social support and group cohesion to create dissonance within the participants. The Body Project is not sufficient as a stand-alone treatment for individuals meeting current criteria for an eating disorder, so attempts should be made to exclude such individuals.