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, Vaping: Safe? Or Are Your Lungs Going Up In Smoke? What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Is Vaping Worse Than Smoking Cigarettes? Get the Facts Cases of Vaping Related Lung Illness Surge, Health Officials Say The New York Times