What is emphysema? Emphysema is a lung condition that causes shortness of breath. In people with emphysema, the air sacs in the lungs...

What are COPDs? Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory lung disease that causes obstructed airflow from...

What is sinusitis? Sinusitis is an inflammation, or swelling, of the tissue lining the sinuses. The sinuses are four paired cavities...