5 Vaping Facts You Need to Know Johns Hopkins Medicine 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 with Juul & Other Electronic Cigarettes What Does Vaping Do to Your Lungs? Johns Hopkins Medicine 5 Vaping Facts You Need to Know Johns Hopkins Medicine