Health Library
The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
Lung Function
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Learn what's going on in the lungs that can make it hard to breathe when you have asthma.
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Learn how COPD affects your lungs and makes it hard to breathe.
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Chronic obstructive pulmonary disease (COPD) slowly damages the lungs and affects how you breathe. COPD's effect on breathing In COPD, the airways of the lungs (bronchial tubes) become inflamed and narrowed. They tend to collapse when you breathe out and can become clogged with mucus. This reduces airflow through the...
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Lung function means how well your lungs work. When you have COPD, your lungs can't move as much air in and out as they should. And the more serious your COPD is, the less air your lungs are able to move. Spirometry tests are used to measure lung function. They measure how much air you breathe out when you take long...