Children who vape are 3 times more likely to become smokers, new study suggests South China Morning Post Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times New E Cigarette Laws Could Drive Some Users to Smoke More Cigarettes Duke Health 5 Vaping Facts You Need to Know Johns Hopkins Medicine Vaping isn't harmless. Early nicotine use can harm brain development, affect how nerve cells work, and increase the risk of addiction. Young people who vape are 4x more likely to start smoking