Regular endurance training has profound physiological effects on the heart. This type of training increases the heart's stroke volume, which is the amount of blood pumped with each heartbeat. Over time, this adaptation results in a lower resting heart rate and improved cardiovascular efficiency. Endurance training enhances blood flow, promotes the growth of new blood vessels, and improves the ability of muscles to utilize oxygen effectively. These changes help reduce the risk of cardiovascular diseases, enhance stamina, and support overall health. Ultimately, endurance training contributes significantly to optimal heart health and performance.