If your heart is beating abnormally, you may wonder whether you're experiencing heart palpitations or a heart murmur. Here's ...

If you have a racing or irregular heartbeat, also known as an arrhythmia, one likely suspect is atrial fibrillation (AFib). “Of all the possible heart rhythm disorders, atrial fibrillation is by far ...

Sudden cardiac arrest may occur in various conditions when someone, while active (playing basketball or walking with friends), collapses and passes out. Their blood pressure drops, and often their ...

The heart is a functional syncytium consisting of numerous cardiomyocytes that repetitively exhibit coordinated contractions/relaxations. However, the extent to which ...

Nancy Wells crossed the finish line of the 2025 Glass City Half Marathon in Toledo, Ohio, feeling elated. That in itself wouldn’t be unique—for one, the now 55-year-old has run over 60 marathons and ...

When Danish footballer Christian Eriksen collapsed during a friendly match recently, many people would have been surprised to see the footballer walk off the pitch after regaining ...