Emphysema (Lung Disease): Often Caused By Smoking
Emphysema Cigarette Smoking Is the Leading Cause Emphysema is a chronic lung disease and one of two forms of chronic obstructive pulmonary disease, or COPD. (The other form is chronic bronchitis.) About three million Americans suffer from emphysema. The most common causes of emphysema are years of cigarette smoking and exposure to environmental toxins. In …