The heart is a pump that functions by pushing the blood through its four chambers. The sequence is controlled by bundles of cells which control the electrical activity of the heart. When the sequence is disturbed, heart arrhythmias occur.
Arrhythmias are abnormal rhythms of the heart .
They cause the heart to pump blood less effectively. Most cardiac arrhythmias are temporary and benign. Most temporary and benign arrhythmias are those where your heart skips a beat or has an extra beat. The occasional skip or extra beat is often caused by These occasional changes can be brought on by strong emotions or exercise. Nonetheless, some arrhythmias may be life-threatening and require treatment.