Activities best for improving cardiovascular health include aerobic exercises such as running, swimming, cycling, and brisk walking. These activities increase heart rate and stimulate circulation, which strengthens the heart and lungs over time. Engaging in regular aerobic activity can help lower blood pressure, improve cholesterol levels, and enhance overall cardiovascular function. Group classes, sports, and outdoor activities can also provide social benefits, further promoting motivation and adherence to a fitness routine. It’s recommended to aim for at least 150 minutes of moderate-intensity aerobic exercise weekly for optimal heart health.