[Health benefits of exercise and its cost-effectiveness].

It is common to argue for sport and physical activity with its health benefits. There has also been a growing demand for using sport as a method for health promotion and preventive care. The effects of sport and physical activity are known to same extend. We know some individual effects of sport to blood circulation and hypertension and so on. What we actually do not know, is, whether sport is a good and effective remedy for illnesses or in health promotion when compared with other possible treatments. And if it is, is it also cost-effective? Also there is no evidence of possibilities of cutting down health care costs by encouraging our population to make more sport and physical training.