What is Heart Arrhythmia ❓🫀 Heart arrhythmia, also known simply as arrhythmia, refers to an irregular or abnormal heartbeat. The heart's normal rhythm is controlled by a natural pacemaker called the sinoatrial (SA) node, which produces electrical impulses that regulate the heart rate. However, in the case of arrhythmia, the heart's electrical impulses may occur too quickly, too slowly, or irregularly, disrupting the normal rhythm. Arrhythmias can affect either the atria (upper chambers) or the

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