Fitness is a kind of exercise, including unarmed aerobics, rhythmic gymnastics, bodybuilding gymnastics, resistance movements, etc., which can enhance strength, flexibility, endurance, coordination and body control, and make the body stronger. To relieve stress, exercise at least three times a week.

Swimming, brisk walking, jogging, cycling and other aerobic exercises can exercise the heart. The benefits of aerobic exercise include exercising cardiopulmonary function, strengthening circulatory system, burning fat, increasing vital capacity, lowering blood pressure, and even preventing diabetes and heart disease. According to the suggestion of American College of Sports Medicine, the intensity of aerobic exercise can be determined by testing the heart rate, and the optimal heart rate is 60% ~ 90% of the highest heart rate.

There is a wide range of fitness, and exercise is only a part of it. In addition to exercise, fitness also includes writing, singing, doing housework, practicing yoga and other activities.