Copd Symptoms

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What Is It?

Chronic obstructive pulmonary disease (COPD) refers to a group of disorders that damage the lungs and make breathing increasingly more difficult over time. The two most common forms of COPD are chronic bronchitis and emphysema. Both are chronic (long-term) illnesses that impair airflow in the lungs. Currently, COPD affects at least millions of people in the United States, causing more than 100,000 deaths each year. In more than 80% of cases, the illness is related to cigarette...

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