Walking is an aerobic exercise and one of the easiest ways to increase your physical activity and also improve your health. Walking increases your heart rate, strengthens your heart function, speeds up blood circulation throughout your body, and brings more oxygen and nutrients to the work of your organs. Aerobic exercise also enhances the oxygen-carrying capacity of the lungs, lowers blood pressure, helps reduce body fat, and regulates blood sugar and cholesterol levels. When you start to exercise, master the following principles and points, and long-term adherence, will certainly make your heart healthier. 1, start an exercise program before doing a health check. If you have heart disease, your doctor may do a test to detect the amount of exercise your heart can safely complete. 2. Warm up before exercise, start slowly, speed up a little during exercise, and cool down slowly at the end. 3. Stay motivated and take a walk with a friend, coworker or pet. Set an attainable goal. 4, use a pedometer to record your steps, wear it every day and try to walk more than 2,000 steps more than usual. Over time, slowly increase your steps. 5, moderate exercise, grasp the “three, five, seven” principle: “three” refers to the best daily walking 3,000 meters, time in more than 30 minutes; “five” refers to the weekly walking five times; “Seven” refers to the right amount of exercise. Self-measurement of the pulse for assessment, the heart rate after exercise + age = 170 or so appropriate, for example, 60-year-old people, the pulse after exercise in the 110 times / per minute more appropriate. 6, if there is chest tightness, shortness of breath, chest pain and other symptoms during exercise, stop exercising immediately, rest in place, and go to the hospital for medical treatment if necessary.