Chronic obstructive pulmonary disease (COPD) includes two lung conditions—chronic bronchitis and emphysema. More than 12 million people in the United States have COPD (and COPD is the fourth leading cause of death), but another 12 million have COPD without knowing it.
This near-death experience finally got him to quit smoking
I use a machine that provides extra oxygen for me to breathe
AAT deficiency is so rare, doctors may miss it
Find out more about this serious, long-term illness
Olson saw pulmonary rehabilitation perform "miracles"