Vaping' Increases Odds of Asthma and COPD Johns Hopkins Medicine The evidence is clear: Young E cigarette users suffer from respiratory symptoms American Lung Association Full article: Health impact of e cigarettes and heated tobacco products in chronic obstructive pulmonary disease: current and emerging evidence Association of electronic cigarette use and risk of COPD: a systematic review and meta analysis npj Primary Care Respiratory Medicine Smoking and Chronic Lung Disease: What To Know