COPD is a chronic progressive lung disease. It causes chronic inflammation, airway narrowing, exertion-induced coughing with mucus, and shortness of breath. Smokers and passive smokers are more in danger. You may learn about the causes of COPD here. In the world, 80-90% of COPD cases are caused by smoking. Active Smoking Tobacco smoking increases the risk of developing COPD by …
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