A heart attack is a common but serious health condition that takes place when the flow of blood to the heart is severely reduced or blocked. This is primarily caused by the buildup of fat, cholesterol ...

Chest discomfort, shortness of breath, or an unusual heartbeat may lead a doctor to check how the heart performs under added strain. A cardiac stress test measures that response during exercise or ...

Every year, people walk out of their doctor's office after a normal stress test feeling completely reassured - only to have a heart attack weeks later. That's not a rare fluke. It's a predictable gap ...