Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Tobacco Smoke, Vaping, and Asthma AAFA.org Teens who vape are more likely to become teens who smoke and smoke more often Los Angeles Times Teenage girls smoke and vape as much as boys, survey shows Youth vaping is rising and it's harming more than just lungs. 77% of young adults who vape never smoked cigarettes It impacts brain development, learning, and mental health While vaping is not risk free, it is less harmful than tobacco Our World in Data