chronic obstructive pulmonary disease

Chronic obstructive pulmonary disease (COPD) is a group of progressive lung conditions such as chronic bronchitis and emphysema. Emphysema steadily impairs the air sacs in the lungs which disrupts outward air flow. As for bronchitis, it results to inflammation and constriction of the bronchial tubes which allows the buildup of mucus. The condition can cause […]