+COPD (Chronic Obstructive Pulmonary Disease) is a progressive lung disease that limits airflow, making breathing a daily struggle. Often linked to [Smoking](/wiki/smoking) or prolonged exposure to [Air pollution](/wiki/air-pollution), it silently diminishes the lungs' vital capacity.
+## See also
+- [Emphysema](/wiki/emphysema)
+- [Bronchitis](/wiki/bronchitis)
+- [Lung disease](/wiki/lung-disease)
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