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The Four Stages of Chronic Obstructive Pulmonary Disease (COPD). Chronic obstructive pulmonary disease (COPD) is a group of lung diseases that progress over time. COPD is most common in smokers and people over the age of 40. It’s estimated that about 174 million people have COPD, and more than 3 million people around the world die from it each year. People with COPD often have trouble breathing, a persistent cough, and shortness of breath. COPD can be subdivided into stages or grades, depending on how far it has progressed. In its early stages, COPD is barely noticeable, but it gets worse over time unless you get proper treatment. The earlier you catch it, the better your outlook is. Keep watching to learn about the four stages of COPD. We’ll break down the symptoms you can expect at each stage and potential treatment options. What Are the 4 Stages of COPD and the Symptoms of Each Learn More:
