Cardiac arrhythmias refer to abnormal heart rhythms that occur due to disruptions in the electrical impulses that regulate the heart's pumping action. These irregular rhythms can range from harmless and barely noticeable to life-threatening conditions requiring immediate medical attention. Here is some information about cardiac arrhythmias: Types of Cardiac Arrhythmias: Atrial Fibrillation (AFib): This is the most common type of arrhythmia, where the heart's upper...