Lifestyle changes that benefit heart health the most include adopting a balanced diet, regular exercise, smoking cessation, and stress management. A diet rich in fruits, vegetables, whole grains, and lean proteins helps lower cholesterol levels and blood pressure. Engaging in physical activity strengthens the heart muscle and enhances circulation. Similarly, quitting smoking reduces risks significantly, while effective stress management techniques, such as mindfulness or yoga, can lower cortisol levels. Implementing these changes contributes to overall cardiovascular health and reduces the risk of heart disease.