Adaptation of divers in the European North

: The article gives a value of physiological condition of plungers's organisme during the most unfavorable season of the year-- polar night--in condition of based planed readiness (n = 26). Data of researches concluded necessary parameters of anthropometry, homodynamic, respirator functions. Supplementary diagnostic base was made by methods from the program of express-control of functional conditions. The results of the searches gave an opportunity to esteem the examined group of service men as people with tight vegetal nervous system, high level of neurohumoral regularity, which common for the physically strong people. It confirms the effectiveness of existing system of choice of plungers. The authors offer to fix a system of physiological monitoring of the health of all the service men. The purpose of this action is an early revelation of donozoologial conditions.