Seth J. Schwartz is Professor of Public Health Sciences at the University of Miami Leonard M. Miller School of Medicine. His research focuses on personal and cultural identity among diverse groups of adolescents and emerging adults, as well as acculturative processes among immigrants, and the effects of these identity and cultural processes on health outcomes.Jennifer B. Unger is Professor of Preventive Medicine at the University of Southern California Keck School of Medicine. Her research focuses on the psychosocial and cultural influences on health behaviors, tobacco regulatory science, entertainment-education approaches to health promotion for low-literacy populations, and dissemination of health information through social media.