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, 5 ways that vaping can damage your body Can E Cigarette use be Beneficial to Patients with COPD? Red Vape An updated overview of e cigarette impact on human health Respiratory Research Springer Nature Link