“Heart disease presents typically with chest pressure and tightness, but there are some atypical presentations, especially in ...

With symptoms such as a racing, fluttering heartbeat and shortness of breath, atrial fibrillation (AFib) is more than uncomfortable — it makes stroke five times more likely and, over time, can weaken ...

Whether due to stress or an intense cardio workout, most of us have felt our heart racing from time to time. A rise in your heart rate can be perfectly normal given outside circumstances. However, ...

Your heart has been doing its job faithfully for years, beating steadily in the background while you go about your daily life. Then suddenly, you become acutely aware of every beat as it seems to ...

Scientists who arranged for 48 human bioengineered heart tissue samples to spend 30 days at the International Space Station report evidence that the low gravity conditions in space weakened the ...

DEAR MAYO CLINIC: I've been diagnosed with atrial fibrillation. I've read that it puts me at greater risk of stroke. Can you tell me more about this? ANSWER: You may not have known you had atrial ...

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

ST. LOUIS — Dr. Paban Saha, an Electrophysiologist with Prairie Cardiovascular, discusses atrial fibrillation. What is Atrial Fibrillation (A-fib)? A-fib is a common heart condition where the heart ...

Heart racing suddenly during workouts or daily activity? Doctors explain supraventricular tachycardia (SVT), its symptoms, causes, and when to seek help.