Different kinds of exercise and activity have different effects on your body. If you have high blood pressure, you should try to focus on activities that will help your heart and blood vessels. Aerobic activity is the type that helps your heart the most. Aerobic activities are repetitive and rhythmic movements (exercises), and they use the large muscle groups of your body, such as those in your legs, shoulders and arms. Walking, jogging, swimming, dancing and digging are all aerobic activities.