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Government Agencies The National Heart Lung and Blood Institute, a branch of the National Institutes of Health and U.S. Department of Health & Human Services, provides information on COPD, including an overview, causes, risk factors, signs and symptoms, diagnosis, treatment, and clinical trials.  They also offer information in a video format. Associations The American Lung [...]

COPD, or chronic obstructed pulmonary disease, causes a constriction of the airway, making it difficult to breathe.  Symptoms include wheezing, shortness of breath, chest tightness, and mucus production. COPD is also known as emphysema and chronic bronchitis. It is the fourth leading cause of death in the United States. (NIH) COPD Symptoms Individuals with COPD [...]