One of the methods of non-drug treatment of essential arterial hypertension, is manual, osteopathic effects on the spine, primarily the cervical spine. Despite the absence of these methods in clinical guidelines for essential arterial hypertension, they continue to develop and improve. One of the promising areas is manual-physical correction with an effect on the cervical spine and subsequent strengthening of the muscle corset with the help of physical exercises (method of A.Yu. Shishonin). One of the supposed mechanisms for reducing blood pressure (BP) in this case is the effect on the autonomic nervous system (ANS). In the course of the study, which was based on the study of heart rate variability (HRV), the presence of pronounced signs of a decrease in sympathetic influences and activation of the parasympathetic nervous system was shown. The parameters of statistical linear analysis (standard deviation of NN intervals; stress index, etc.) and the wave spectrum shifted towards sympathicotonia during therapy using the method of A.Yu. Shishonin. The HRV data were obtained against the background of a decrease in blood pressure and a decrease in heart rate (HR), which suggests the impact of manual physical correction on the ANS as one of the key mechanisms mediating its effect.