Dr. William O'Neill answers the question: 'Stress Tests And Heart Rhythm Problem — -- Question: I have been diagnosed with a heart rhythm problem, is a stress test dangerous for me? Answer :If ...

Genetic testing is moving from predicting heart attacks years down the line to flagging dangerous heart rhythms before they ever appear on an electrocardiogram. Instead of waiting for symptoms, ...

Add Yahoo as a preferred source to see more of our stories on Google. Worried about your memory? Minor slip-ups, like forgetting to move your clothes from the washer to the dryer, are nothing to worry ...

Dr. O'Neill answers the question: 'Best Stress Test For Rhythm Problems?' — -- Question: Is there a better type of stress test for patients who have heart rhythm problems? Answer :When a doctor ...

Sleep researchers have found it's possible to determine the timing of a person's internal biological clock via a single blood draw. Ultimately, the findings could lead to a simple blood test for ...