To keep your blood vessels healthy and clear, prevention is the best medicine. Eat a diet low in saturated fats and high in fruits, vegetables, nuts, and whole grains. If you smoke, quit, and if you don't smoke, don't start. Have regular checkups and keep track of your cholesterol levels and blood pressure readings. Manage chronic conditions, like diabetes, that can damage blood vessels and cause heart disease if uncontrolled. Staying active is key: your body was made to move. Exercise not only reduces your risk of cardiovascular disease, it also reduces stress and helps prevent many other diseases, including cancer.