An electrocardiogram, commonly known as an ECG or EKG, is a non-invasive medical test that records the electrical activity of the heart over a specific period. This diagnostic tool is invaluable in assessing the heart's health and identifying various cardiac conditions. During an ECG, electrodes are strategically placed on the skin to detect the electrical impulses generated by the heart as it contracts and relaxes. The resulting graph, known as an electrocardiogram, provides a visual representation of the heart's rhythm and can reveal abnormalities such as irregular heartbeats, arrhythmias, or indications of ischemia. ECGs are routinely used in medical settings, from routine check-ups to emergency situations, aiding healthcare professionals in making accurate diagnoses and developing appropriate treatment plans for patients with cardiovascular issues. The simplicity, speed, and effectiveness of ECGs make them a fundamental tool in the field of cardiology, contributing significantly to the monitoring and maintenance of heart health.