What Does Vaping Do to Your Lungs? Johns Hopkins Medicine When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to Will Vaping Lead Teens to Smoking Cigarettes? Johns Hopkins Medicine A viral simulation comparing the effects of smoking and vaping has reignited debate over the long term health risks of both habits. The demonstration visually shows how cigarette smoke leaves thick tar buildup