Full article: Health impact of e cigarettes and heated tobacco products in chronic obstructive pulmonary disease: current and emerging evidence Are e cigarettes more dangerous than regular ones? Nicorex E cig use associated with asthma, COPD in never smokers Stanton Glantz blog Are E Cigarettes a Safe Alternative to Smoking? Using Airway Cell Cultures to Assess Early Indicators of COPD Progression Inquiries Journal Chronic Obstructive Pulmonary Disease (COPD) A new study published in Nicotine & Tobacco Research found that those using e cigarettes alone were more than twice as likely to develop COPD than people who didn't use any tobacco products,