Cardiac arrhythmia is a condition characterized by irregular heartbeats, which can be either too fast (tachycardia) or too slow (bradycardia). This irregularity disrupts the normal rhythm of the heart, potentially leading to serious complications such as fainting, stroke, or sudden cardiac arrest. Research in this area focuses on understanding the mechanisms underlying cardiac arrhythmias, developing new diagnostic techniques, and exploring novel treatment options to improve patient outcomes. This research is crucial for advancing our knowledge of heart health and preventing potentially life-threatening cardiac events.