Human physiology is the theoretical basis of a number of practical disciplines (medicine, psychology, pedagogy, biomechanics, biochemistry, etc.)· Without understanding the normal course of physiological processes and the constants characterizing them, various specialists cannot correctly assess the functional state of the human body and its performance in various conditions of activity. Knowledge of the physiological mechanisms of regulation of various body functions is important in understanding the course of recovery processes during and after strenuous muscle labor. The textbook was prepared in accordance with the new physiology program for physical education universities and the requirements of the State Standard for Higher Professional Education. For students, graduate students, researchers, teachers, coaches and doctors working in the field of physical education.