Getting teenagers to talk with adults about sex and drugs and social media is never an easy ask. But on one chilly evening in the common room of the W. Du Bois College House at the University of Pennsylvania , a dozen Philadelphia high school students openly shared their thoughts on the subjects. One particular topic—the influence of the photo-sharing site Instagram—struck particularly close to home. Earlier that day, confusion and accusations over a fake Instagram account lead to a fight and, separately, a student at their school getting physically assaulted. For Penn Nursing researcher Robin Stevens , the conversations were enlightening.