The preservation and promotion of the mental health of the younger generation is one of the urgent problems not only of modern medicine, but also of modern pedagogy. This guide describes the main common techniques used in psychological hygiene to overcome and prevent psychological problems such as nerve overloads and neuroses in children, personality disorders associated with alcohol dependence. Some techniques are described for the first time. Self-immersion into a state of mild hypnotic trance. Methods of psychological correction of somatic disorders. The manual is intended primarily for children and adolescents, as well as teachers and psychologists working with their parents. But this will be interesting not only for those who are interested in the achievements of modern psychology, psychohygiene and psychotherapy, but also for the students themselves.