 But the heart of someone with pulmonary hypertension, pH for short, labors. pH puts unbearable stress on the heart, which can cause death from heart failure. And it's often misdiagnosed as asthma. But with early, accurate diagnosis, new treatments are helping people with pH live longer and better. The Pulmonary Hypertension Association gives hope to pH patients and caregivers. We want people to have a heart that is strong for a life rich in