Zeenat Safdar, MD, is an assistant professor of medicine and associate director of the Pulmonary Hypertension Service at Baylor College of Medicine in Houston. She is board-certified in internal medicine and pulmonary disease and is the author of numerous research articles on pulmonary hypertension and other lung conditions.
Ever since she had turned 50, my college chum Jackie had felt increasingly short of breath when trying to do…
