Map of the Human Heart Originally appeared on the NOVA Web site Cut to the Heart. Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of ...

A heart PET scan is an imaging tool, offering information on blood flow and heart health. Learn more about how this scan helps with diagnosing heart conditions.

RELATED: Using gene editing to keep cholesterol down and heart attacks at bay A team led by the University of Oxford recently is also focusing on addressing blood-flow stress as a strategy to ...