In the fifth installment of my drug facts series, I speak with Dr. Bonnie Halpern-Felsher, Professor of Pediatrics in adolescent medicine at Stanford University and the founder of the Tobacco Prevention Toolkit, an online curricular aimed at reducing and preventing youth tobacco use. Dr. Halpern-Felsher discusses the unique harm nicotine poses to teenagers, especially in the era of electronic cigarettes. She reviews the different methods of nicotine delivery, the available treatment options for nicotine addiction, and why quitting is always possible and beneficial. Dr. Halpern-Felsher is a developmental psychologist who has researched the cognitive and psychosocial factors involved in adolescents’ and young adults’ health-related decision-making, perceptions of risk and vulnerability, health communication, and risk behavior. Her research has focused on understanding and reducing health risk behaviors such as tobacco use, alcohol and marijuana use, risky driving, and risky sexual behavior and has influenced national policies regulating adolescent and young adult tobacco use. Learn more about Dr. Halpern-Felsher at https://profiles.stanford.edu/bonnie-halpern-felsher