Cardiac electrophysiology is the study of the electrical activity of the heart, particularly focusing on the generation and propagation of electrical impulses that regulate the heart’s rhythm and contraction. This field of study involves understanding the mechanisms underlying irregular heart rhythms (arrhythmias), as well as developing diagnostic and therapeutic approaches for their management. Researchers in cardiac electrophysiology may investigate the role of ion channels, pacemaker cells, and other components of the cardiac conduction system in maintaining normal heart function, as well as exploring the impact of genetic, structural, and environmental factors on cardiac electrophysiology. Overall, this research area plays a critical role in advancing our understanding of heart function and improving the diagnosis and treatment of heart rhythm disorders.