Changes in the heart's electrical signaling can cause sudden death, often due to ventricular fibrillation.
Ventricular fibrillation is a life-threatening irregular heartbeat where the lower chambers of the heart (ventricles) squeeze rapidly and uncoordinatedly. This prevents the heart from effectively pumping blood to the body, leading to sudden cardiac arrest and potentially death if not treated immediately. This condition arises from malfunctions in the heart's electrical system, responsible for regulating the heartbeat.