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, 883 Vaping Lungs Stock Vectors and Vector Art Shutterstock Smoker's lungs vs. healthy lungs: Facts, pictures, and more What Vaping Really Does to Your Lungs University of Utah Health