Chronic obstructive pulmonary disease, or COPD, is a long-term disease consisting of damage in the tissue of the lungs or in the airways. COPD encompasses two diseases - emphysema and chronic bronchitis - and is almost always the result of years of cigarette smoking.
The disease is a common one. According to the American College of Chest Physicians (ACCP), more than 5 percent of American adults suffer from COPD.
COPD tends to set in between ages 50 and 70. ACCP reports that numbers are highest among women between ages 65 and 74, with a 10.4 percent rate of COPD.
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