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, New Study Challenges Claims About E cigarette Risks: A closer look at the data identifies vaping has similar risk reductions for heart attacks, strokes and COPD as quitting smoking without using any alternative. E cigarettes disrupt lung function, raise risk of infection Teens using e cigs are more likely to smoke cigarettes Health News The Indian Express E cig use associated with asthma, COPD in never smokers Stanton Glantz blog