[Exercise-risks and side effects].

Physical activity and exercise is widely connected with positive effects on human health. However, exercise may also pose as a risk factor for health under specific circumstances. Primarily, the risks connected with exercise are physical risks, but also psychological risks may appear, especially when exercise is conducted excessively. Psychological risks include eating disorders, illegal and legal substance use and exercise dependence. The aims of the present article are to focus on potential risks and side effects of exercise and physical activity and to put the risks in the context of the positive effects of exercise on health.