Electrophysiology studies are medical tests that measure the electrical activity of the heart. They help doctors understand how the heart's electrical signals work and identify any irregularities, such as arrhythmias. During the procedure, thin wires called catheters are inserted into the heart through blood vessels to record electrical signals. These studies can also be used to determine the best treatment options for heart conditions. By mapping the heart's electrical pathways, doctors can pinpoint areas causing problems and may even perform ablation to correct them. Overall, electrophysiology studies are essential for diagnosing and managing heart rhythm disorders.