In the past decade, millions of Americans made the switch from cigarettes to vaping in hopes of avoiding the worst smoking-related illnesses. In the process, many who never smoked cigarettes have found themselves addicted to nicotine without strong guidelines on how to quit. Bonnie Halpern-Felsher, PhD, FSAHM, professor of pediatrics/adolescent medicine at Stanford, and founder/director of the Stanford REACH Lab, explains how we got here and shares medical advice on how to quit vaping.