Violent television programmes and video games, printed tobacco advertisements, television beer commercials and sexually suggestive music videos: how do these and other forms of popular media affect teenagers' thinking, behaviour and health? This volume clearly makes the case that the media play a role in diverse facets of at-risk behaviour and adjustment. The author reviews current research findings on the influences of media on adolescents, how the influences occur, and the short- and long-term effects of exposure. He explores topics critical to mental and physical health including teenage violence, sexual activity, substance abuse and eating disorders.