Social Networking and Peer Pressure
A new report finds teenagers who see their friends smoking and drinking in photos on Facebook and other social networking sites are more likely to smoke and drink themselves.
Researchers from the University of Southern California surveyed 1,500 10th graders in Los Angeles.
They found more than a third of the students had at least one friend who talked about partying online.
Twenty percent reported that their friends posted pictures from parties and drinking photos on the web.