[Physiologic and hygienic aspects of work conditions for humans at open territories of the Far North].

The studies proved that males and females, who work outdoors in Far North, demonstrate strain of thermoregulation and such associated systems as primarily cardiovascular and respiratory ones. Lower tolerance of the workers to physical strain shows more intensive impact of work in such regions on physiologic functioning. The studies determined peculiarities of pulmonary circulation in the inhabitants of Far North. Those peculiarities are caused by cooling and low absolute humidity. Functional strain in the examinees appeared to depend on weather conditions of Far North.