An exercise stress test, also known as a heart stress test, evaluates how well your heart functions during physical activity. Your heart requires more oxygen when you work out. You might not ...

Dear Doctor K: I had a heart attack last year. I recently had a follow-up exercise stress test. Now my doctor wants me to have a nuclear stress test. What information will it provide?

DEAR DR. ROACH: I am a 64-year-old woman with a family history of heart disease. Both of my parents had heart attacks and open-heart surgery. At ages 50, 55 and 60, I experienced what I thought were ...