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I'm a cardiologist — here's why your heart races at night (and when it's time to worry)

Below, youll learn all about that weird feeling in your chest, including what causes heart palpitations to begin with, whats totally normal versus when you should go to the hospit ...
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Is your heart beating too fast or irregularly? Cardiologist shares 6 major signs of arrhythmia

In some cases, these irregular beats may point to arrhythmia, a condition in which the heart beats too fast, too slow or irregularly because of a disruption in its electrical signals. To understand ...