Impedance Cardiography is a non-invasive medical technique used to measure the electrical impedance of the thorax, which reflects changes in blood volume within the heart and major blood vessels. By applying small electrical currents through electrodes placed on the skin, this method can provide valuable information about heart function, including stroke volume and cardiac output. This technology is beneficial for monitoring cardiovascular health, as it allows for continuous assessment without the need for invasive procedures. Impedance Cardiography is often used in clinical settings, research, and even in some wearable health devices to track heart performance over time.