Dr. Levine had been a staff physician at Peter Bent Brigham Hospital and was in consultant in cardiology there when he died. He was also affiliated with six other hospitals throughout the country.

Take heart that there are things you can do to lower your risk. Dr. Evan S. Levine, a cardiologist for Mount Sinai Health in Scarsdale, has 10 tips for preventing a heart attack before 60.

If you fall into the former category, you’re in luck. Dr. Eleanor Levin, a cardiologist at Stanford University, says she never eats liver. “Liver is a red meat that’s extremely high in fat ...