The reality for teens who vape UT Physicians What Happens When You Quit Smoking and Start Vaping? Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times 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 More E Cig Use Linked to Greater Chances of Quitting Smoking MedPage Today