American Heart Association

Tiny structures in the heart may provide clues to heart disease and stroke


Tiny cells in your heart and blood vessels are constantly on the move, darting in and out of microscopic structures that look a little like scaffolding around buildings.

That might sound like run-of-the-mill activity, but scientists say figuring out exactly what the scaffolding does to cells […]

STORIES FROM THE HEART: Med school student helps save a patient’s life — his

As a student at the University of Virginia medical school, Cullen Timmons was taking a two-week elective called Advanced Physical Diagnosis last fall when he pressed the circular tip of the stethoscope against his own chest.

He noticed a murmur, a swish after the second beat.

Not normal, he knew. So […]