The article considers the influence of geographic and climatic conditions of the Arctic on a functional condition of aviation professionals. Marked possible effects of aggressive environmental factors on the health of the personnel. Studied the dynamics of the recovery functions of the cardio-respiratory system and of the indicators of general clinical blood test in a period of adaptation to the conditions of the middle latitudes after the return of the personnel from the Arctic. Identified the main activities to preserve the health of aviation specialists, depending on the length of stay in the Arctic region and age.