Chronic obstructive pulmonary disease, also known as COPD, consists of a group of lung diseases that block airflow and make it difficult to breathe. Emphysema and chronic bronchitis are two of the most commons illnesses that fall under COPD. COPD can cause a number of other health-realted issues. While it is not curable, there are many treatment options to lessen the symptoms, including certain life style changes, using an oxygen concentrator, and more. 

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