Inclusion Criteria:  Written informed consent of participation in the study; Age:over 18 years old complaints of dizziness and insteadiness  Exclusion Criteria:  Severe cognitive impairment (dementia) Severe depression Syncopal paroxysms Epileptic seizures Orthostatic hypotension Severe arrhythmia, unstable angina pectoris, acute myocardial infarction Pregnancy 8. Alcoholism, substance abuse and drug addiction Organic liver and kidney diseases with the development of functional disorders. Anemia (hemoglobin <10.5 g / dl for women and <11.5 g / dl for men) Active oncological process Demyelinating and neurodegenerative diseases.