One of the most important causes of young schoolchildren's studying performance's decreasing is psychological and physiological fatigue, rising during the educational process. The author of this article had analyzed the fatiguability and suggested some ways to overcome it. Among different means against fatigue rising the author recommends physical exercises over day-curricula, the psychological relaxation after each lesson, the outdoor promenades and moving games. Beside that, it was noted in the conclusions, that the efficiency of these means is in dependence on psychological, physiological and age specifics of young schoolchildren.