The Frequency She Learned to Hear

In 2019, a first-year medical student named Priya Chandrasekaran sat in a cardiology lab at Johns Hopkins, stethoscope pressed to a patient's chest, hearing nothing but a muffled thump. Her attending physician, Dr. Wallen, leaned over and said, "Listen again. There's a murmur between the beats — a whooshing sound, very faint." Priya heard nothing. She tried again. Nothing. On the third attempt, Dr.…