E.Yu. Shalsmova - Ph.D. (Biol.), Associate Professor, Department of Normal Physiology and Physiopathology, Budgetary Institution of KHMAO-Yugra «Khanty-Mansiysk State Medical Academy». E-mail: selenzik@mail.ru V.R. Safonova - Ph.D. (Biol.), Senior Lecturer, Department of Physical Education, Physical Therapy, Rehabilitation and Sports Medicine, Budgetary Institution of KHMAO-Yugra «Khanty-Mansiysk State Medical Academy». E-mail: vikasafonowa@mail.ru O.N. Ragozin - Dr.Sc. (Med.), Professor, Department of Hospital Therapy, Budgetary Institution of KHMAO-Yugra «Khanty-Mansiysk State Medical Academy». E-mail: oragozin@mail.ru I.V. Radysh - Dr.Sc. (Med.), Professor, Аcademician REA, Head of the Department of Nursing Management Activities, Peoples\' Friendship University of Russia (Moscow). E-mail: iradysh@mail.ru A.B. Gudkov - Dr.Sc. (Med.), Professor, Head Department of Hygiene and Medical Ecology, Northern State Medical University (Arkhangelsk). E-mail: gudkovab@nsmu.ru A.Ya. Chizhov - Dr.Sc. (Med.), Professor, Department of Forensic Ecology of Ecological Faculty, Peoples - Friendship University of Russia (Moscow). E-mail: ma21@mail.ru