Exercises are beneficial to health, although there is no conclusive evidence that exercise can increase the immune system disease caused by the infection. But there is evidence that athletes often found that when you get sick from an infection will be cured quickly and has less complications. that it believes that those who exercise have better health than lack of exercise is that organs are developed in both size, shape and functionality, the chance of the disease is not infectious diseases such as Alzheimer's disease in the work of organs, so there is less.