The textbook gives modern ideas about the formation of the health of the child and adolescent population, The physiological and hygienic foundations of various types of children's activities, the issues of rational nutrition of children, hygienic requirements for children's items, hygienic principles of architectural and planning solutions and operation of institutions for children and adolescents, a national strategy for children, approaches to the organization of hygienic education and the formation of a healthy lifestyle, medical and sanitary-epidemiological support for children and adolescents.