Which Smoking Habit Puts You Most at Risk? Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica 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. We've developed BMC Series blog Social Inequalities in Vaping: Why Smoking Matters