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 ...

In a normal heart rhythm, your heart beats in a steady, even way. The upper part of your heart (atria) squeezes and pushes blood to the lower part (ventricles), pumping blood and oxygen out to the ...

(Mass Appeal) – Atrial fibrillation, or A-Fib, is a cardiac disorder involving the heart’s rate and rhythm. It is characterized by an irregular heartbeat rhythm pattern. To learn more about what that ...

Our heartbeat serves as a vital indicator, which shows how well our heart functions. The heart experiences irregular rhythms when it beats either too quickly, too slowly or irregularly. Arrhythmias ...

I felt fine, but my Whoop data told a different story. Paying attention led to early detection and a successful treatment.

The Apple Watch Series 4's transformation from miniature iPhone and fitness tracker to medical device is now complete with the release of the ECG (electrocardiogram) app and irregular heart rhythm ...