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, Older users of e cigarettes at greater risk of respiratory illness, study suggests CUNY Graduate School of Public Health & Health Policy E cigarette use tied to increased COPD, asthma risk MDedge Vaping and Electronic Cigarette Toxicity Overview and Recommendations (Project VECTOR) Intrepid Lab E cigarettes May Worsen COPD Patient Care Online Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy