Electric Hearts: The Microscopic Wiring of the Purkinje Conduction System

The human heart does not beat simply because it is a muscle. If the muscle fibers contracted randomly, the heart would spasm uselessly, failing to pump a single drop of blood. The true conductor of our lifespan is a highly specialized, microscopic electrical grid known as the Purkinje Conduction System. Unlike standard muscle tissue, these fibers are biologically engineered purely for high-speed...