COPD Information for Patients and Caregivers |

cop4dWhat causes COPD? Damage to your lungs from smoking is the most common cause of COPD. Other causes include: Alpha-1 antitrypsin deficiency (alpha-1), a geneticCOPD is a group of progressive lung diseases that includes emphysema and chronic bronchitis. Despite affecting an estimated 32 million people in the United States, as many as