Pulmonary hypertension (PH) is a chronic lung disease that occurs when your pulmonary arteries become narrowed or blocked, causing increased blood pressure in the lungs and forcing the heart to work harder. Here are some risks factors for developing PH according to the Mayo Clinic.
The average age at diagnosis is 36, according to the American Thorasic Society, but it usually develops between the ages of 20 and 60, and can occur at any age.
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