Illustration of chronic obstructive pulmonary disease (COPD), a common lung disease where breathing is difficult. There are two main forms of COPD: Chronic bronchitis, whose symptoms include a long-term cough with mucus) (inset bottom) and emphysema (the
Illustration of chronic obstructive pulmonary disease (COPD), a common lung disease where breathing is difficult. There are two main forms of COPD: Chronic bronchitis, whose symptoms include a long-term cough with mucus) (inset bottom) and emphysema (the gradual breakdown of the lungs) (inset top). Most people with COPD have a combination of both forms. COPD is caused by noxious particles or gas, most commonly from tobacco smoking, which triggers an abnormal inflammatory response in the lung.
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Photo credit: © Monica Schroeder / Alamy / Afripics
License: Licensed
Model Released: No
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