Aerobic exercise positively affects cardiovascular health by improving heart function, enhancing blood circulation, and reducing blood pressure. Regular aerobic activities like running, cycling, or swimming promote adaptations in the heart and lungs, resulting in increased efficiency and decreased heart rate at rest. This type of exercise helps regulate blood lipid levels and supports weight management, both crucial for preventing cardiovascular diseases. Engaging in aerobic activity consistently contributes to lower overall mortality rates and improved quality of life.