bronchitis and smoking cigarettes causes lung cancer chronic Causes of Chronic Bronchitis -

Causes of Chronic Bronchitis StoryMD Smoking slowly damages your lungs, often without clear symptoms at first. Every cigarette releases thousands of toxic chemicals that enter your airways and lungs. Over time, this damage becomes COPD What is Chronic Obstructive Pulmonary Disease PatientsEngage When Smoke Turns Breathing into Slow Destruction Smoking damages the lungs from the very first puff. Toxic chemicals in cigarette smoke burn and irritate the delicate lining of the airways, causing inflammation

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