The monograph is devoted to the problems of the influence of environmental factors on the health of the young generation living in the conditions of the Southern Aral Sea region. It presents the results of research to assess the negative consequences of insufficient motor activity of adolescent youth, which lead to increased morbidity, impaired growth and development, reduced adaptive capacity of the body. The book is addressed to scientists, teachers of higher educational institutions, teachers of physical education, doctoral and master's students engaged in research activities in the field of physical education and sports, undergraduate students, as well as for those who are interested in the problem of environmental protection and eco-physiological research in the region of the Southern Priaralie.