Oxygen therapy can reduce blood pressure in the lungs and diminish the workload of the heart, helping to prevent complications like cor pulmonale. Supplemental oxygen also can help improve sleep, enhance your mood, increase mental alertness and stamina, and allow you to carry out your daily activities easier.
Chronic bronchitis is defined as the presence of a mucus-producing cough that persists for at least 3 months in at least two consecutive years.
In people with COPD, signs of the disease are caused by the body's attempt to compensate for a damaged respiratory system.
Emphysema is an irreversible, progressive condition characterized by inflammation and reduced airflow in the lungs.