RESUMO
During the epidemiological survey of the military men of the Republic of Karelia with the pre-existing initial manifestations of cerebral circulation insufficiency were established it's main etiological reasons (somatoform autonomic dysfunction--35.2%, cervical osteochondrosis--34.3%) and risk factors (hereditary tainted cardiovascular event, north climate, stress, social habits, peculiarities of military service). Clinical characteristic of labile cerebrastenic syndrome and its peculiarities in compliance with etiological reasons of disease in the presence of autonomic disorders of suprasegmentary character and absence of significant nidal marks in neurological status was given. Complex program for expert diagnosis of the pre-existing initial manifestations of cerebral circulation insufficiency and methods of its propaganda (school, questionary, jotting) were developed and introduced into the practice of neurologist.