Jennifer B. Unger, Ph.D. is a Professor of Preventive Medicine at the University of Southern California Keck School of Medicine. Her research focuses on the psychological, social, and cultural influences on health-risk and health-protective behaviors, with the ultimate goal of developing improved prevention programs to reduce health disparities. She and her colleagues have conducted several longitudinal studies of acculturation and substance use among Hispanic adolescents. Her research also has examined cultural influences on substance use among American Indian adolescents, Chinese adolescents, and African American adults. She is interested in entertainment-education strategies for health education among low-literacy minority populations and has collaborated on the design and evaluation of fotonovelas and telenovelas about secondhand smoke exposure in multiunit housing; diabetes; asthma; immunization; and kidney transplantation. She is a co-investigator in the USC Tobacco Center of Regulatory Science (TCORS), where she studies diffusion of messages about emerging tobacco products to vulnerable populations through social media. Dr. Unger directs the Ph.D. program in Preventive Medicine / Health Behavior Research. She is a Deputy Editor for Nicotine & Tobacco Research and an Associate Editor for Substance Use and Misuse and Tobacco Regulatory Science.