Vaping Related Illness and Lung Disease NEJM 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, Practice Nursing How safe are e cigarettes for patients with COPD? A systematic review Practice Nursing Association of electronic cigarette use and risk of COPD: a systematic review and meta analysis npj Primary Care Respiratory Medicine