What is Pulmonary Arterial Hypertension?

Pulmonary Arterial Hypertension (PAH) is a specific type of pulmonary hypertension that is caused when the tiny arteries in your lung become thickened and narrowed. It is a rare, progressive lung disease, most common in women between the ages of 30-60 but can affect people of all ages. The American Lung Association is collaborating with Janssen to share new resources about PAH. Learn more at Lung.org/PAH.