Many young people who vape did not smoke cigarettes before they started vaping. But young people who vape are more likely to start smoking cigarettes than those who never vape. For help E Cigarettes & Vaping, Chemical Safety Chemical Insights E Cigarettes and Vaping: Are They Really Safe? Study Finds Vaping Just Once Causes Harm TPR Vaping: The Small Habit That Hits Harder Than You Think Maryland Physicians Care Is Vaping Bad For You?