COPD

COPD
Chronic obstructive pulmonary disease (COPD) is the co-occurrence of chronic bronchitis and emphysema, a pair of commonly co-existing diseases of the lungs in which the airways become narrowed. This leads to a limitation of the flow of air to and from the lungs, causing shortness of breath (dyspnea). In contrast to asthma, this limitation is poorly reversible and usually gets progressively worse over time.
  • The number of Americans who report being aware of chronic obstructive pulmonary disease, or COPD, increased by 4 percentage points between 2008 and 2010, but many people at risk are still unaware of the disease, according to mailed survey results released today by the National Heart, Lung, and Blood Institute (NHLBI), part of the National Institutes of Health.
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