The exercise often considered the best for cardiovascular health is running or brisk walking. These activities elevate heart rate and improve blood circulation, thereby enhancing the efficiency of the cardiovascular system. In addition to running, activities like cycling, swimming, and aerobic classes also offer excellent cardiovascular benefits. Regular aerobic exercise strengthens the heart, improves lung capacity, and reduces the risk of heart-related diseases. For optimal cardiovascular health, it is generally recommended to engage in at least 150 minutes of moderate-intensity aerobic activity per week.