Tubes called airways carry air into and out of your lungs. If you have COPD, these airways may become partly blocked from swelling or mucus. This makes it hard to breathe.
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Compare the sound of healthy lungs to noises that indicate a bigger health issue like pneumonia, rales, and other conditions.
Simple tasks are harder to do when you have severe COPD. One doctor lays out what you can expect from the most common treatments.