Fitness can improve the function of the heart and lungs, improve the contractility of the heart and increase the lung capacity.

 Fitness can improve the metabolism of blood lipids, reduce the level of blood lipids, and can improve insulin resistance, reduce the level of blood sugar, reduce the incidence of diabetes.

 Fitness can reduce weight, reduce the proportion of body fat, make muscle more developed, and can increase the basal metabolic rate.

 Fitness may improve bone strength, make bones stronger, and reduce the incidence of osteoporosis.