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 Vape Lungs Vs Smoker Lungs Does vaping cause lung cancer? Healthy Lung vs Smoker's Lung Avant Medical Smoking cigarettes has long been proven to cause severe lung damage, including chronic obstructive pulmonary disease (COPD), emphysema, and lung cancer. Over time, cigarette smoke destroys lung tissue, fills airways with tar, Mouth to Lung (MTL) Vs Direct Lung (DL) Inhale Explained E Cigarette Direct What Does Vaping Do to Your Lungs? Johns Hopkins Medicine