CoEHAR's study confirms beneficial effects of ecig on copd smokers More evidence that e cigs damage lung health independent of smoking Stanton Glantz blog Research Shows Emphysema More Common in Marijuana Smokers Than Cigarette Smokers The Relationship Between Emphysema and COPD PAM Health Vaping vs Smoking: Effects and Tips for Protecting Your Lungs Max Hospital COPD: Chronic Bronchitis vs. Emphysema COPD is an umbrella term that commonly includes chronic bronchitis and emphysema, two conditions with very different presentations. Chronic Bronchitis (Blue Bloater) Productive cough