Involve Teens' Friends in Obesity Treatment 
Adolescents like having friends involved in their obesity treatment program, saying it improves enjoyment, according to research published in Childhood Obesity. Courtney M. Giannini at the Wake Forest School of Medicine, Winston-Salem, NC, and University of Cincinnati in Ohio, and colleagues, recruited 42 teens from an obesity clinic and asked them to list friends they would involve in their treatment. The participants nominated an average of four friends and were more likely to nominate friends they considered close. Friends who participated in the intervention tended to be friends with more of the participant's friends, expending the messages to others in the teen's network. Giannini 2016 Childhood Obesity (PDF)