COPD: Stages, Causes, Treatment, and More - Health

cop4dChronic obstructive pulmonary disease (COPD) is the name for a collection of lung diseases including chronic bronchitis, emphysema, and chronic obstructive airways disease.The main types of COPD are emphysema and chronic bronchitis. They differ in the damage they do to the airways and lungs. However, the causes, symptoms, and treatment of