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COPD

What is COPD?

In people with COPD, the airways and air sacs lose their shape and become floppy. Less air gets in and less air goes out of the airways because

  • The airways and air sacs lose their elasticity like an old rubber band.
  • The walls between many of the air sacs are destroyed.
  • The walls of the airways become thick and inflamed or swollen.
  • Cells in the airways make more mucus or sputum than usual, which tends to clog the airways.