The two most common types of lung disease are chronic bronchitis, emphysema or a combination of both conditions.
COPD damages the lungs whereas chronic bronchitis causes the bronchial tubes to become inflamed, thicken and become narrow. Emphysema damages the walls of the air sacs. Both conditions make air flow in and out of the lungs more difficult. As a result, less oxygen is able to get to our tissues and carbon dioxide can accumulate in the blood.
Some signs of COPD are chronic cough, wheezing, chest tightness, bluish tint to the lips, nail beds or skin, and frequent respiratory infections.
Read more about the risks and signs of COPD here.
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