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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, ...

Oura reports that heart rate variability (HRV) measures the variation in heartbeat timing, reflecting stress levels and ...

If you sometimes experience a racing or irregular heartbeat, it may be caused by atrial fibrillation (AFib), the most common type of heart arrhythmia. AFib can make you five times more likely to have ...

A slow heartbeat may not always raise immediate concern, but in many people, it signals an underlying heart rhythm disorder known as bradycardia. Defined as a resting heart rate of fewer than 60 beats ...

A 65-year-old man treated for ventricular tachycardia storm after repeat bypass surgery, requiring extensive defibrillator shocks for recovery.