Recommended exercises for improving cardiovascular health include activities like running, cycling, swimming, and interval training. These exercises elevate the heart rate and enhance overall heart function, which is critical for efficient blood circulation. Engaging in moderate to vigorous aerobic activities at least 150 minutes weekly, as recommended by health guidelines, can significantly benefit heart health. Additionally, incorporating high-intensity interval training (HIIT) can effectively improve both endurance and cardiovascular efficiency. It's important to choose enjoyable activities to promote consistency and long-term engagement.