Aim Of Investigation: To estimate the Heart rate variability (HRV), by the method of daily kholterovskogo monitoring in the workers of rail transport (RT).
Materials And Methods: A total of 93 persons working in the East Siberian Railway. The main group (CG) consisted of 27 patients with gastric ulcer (GU) and duodenal ulcer (DU) contamination without Helicobacter infection.