Aerobic exercise, particularly activities such as running, cycling, and swimming, promotes cardiovascular health the most. These exercises engage large muscle groups and elevate heart rate, improving cardiovascular endurance and efficiency. Regular aerobic activities strengthen the heart, enhance blood circulation, and help reduce risks of heart diseases. They also improve lung capacity, enhance metabolic rate, and assist in weight management. Incorporating consistent aerobic workouts into a fitness routine is vital for overall heart health and longevity.