Healthy Lung vs Smoker's Lung Avant Medical Vaping and smoking together increases lung cancer risk fourfold 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 NIH Workshop on E Cigarette, or Vaping, Product Use Associated Lung Injury (EVALI): Developing a Research Agenda NHLBI, NIH