A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...

DEAR DR. ROACH: I’m a 75-year-old woman who, for at least 10 years now, has been experiencing a rapid heart rate. My blood pressure, however, remains normal. In fact, doctors are usually surprised at ...

Q: What is the difference between atrial fibrillation and supraventricular tachycardia? A: While both conditions are rapid, abnormal heart rhythms that originate in the upper part of the heart, they ...

A blood test should be able to tell if a patient’s chest pains are actually a heart attack in a matter of minutes ...

Your heart beats about 100,000 times a day. Sometimes it beats faster and sometimes more slowly, depending on what you're doing and whether, for instance, you're all worked up about something. So ...

A rapid heart attack test could significantly accelerate diagnosis and treatment for patients, experts have revealed, promising to cut waiting times in emergency departments. A new study, led by ...

NEW ORLEANS -- Patients experiencing major heart attacks had a lower risk of serious complications if they received a single injection of the investigational drug zalunfiban at first medical contact, ...