Chronic obstructive pulmonary disease (COPD) is a combination of many illnesses that prevent air flow through the airways. When this condition arises, the disease is characterized by a chronic lifetime illness. This is because in "COPD" the airways become permanently constricted, that is, they never return to their normal, healthy or stretched state of life. "COPD" means: C means chronic or chronic, O means obstructive or obstructed by airway, P means pulmonary or pulmonary D means Disease or...
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