Diseases of the cardiovascular system are an urgent problem of modern healthcare. A significant share among these pathologies is arterial hypertension (AH) – a persistent increase in blood pressure (BP) above 140/90 mm Hg. According to some sources, 20–30% of the adult population suffers from hypertension. With age, the prevalence of this disease increases and is more than 50% in people over 60 years of age. A particular problem in cardiology is poor adherence to treatment among patients with hypertension. It is known that about half of these patients do not use medications in accordance with the doctor’s prescriptions, do not follow his recommendations and do not regularly monitor their BP. Studies show that knowledgeable patients with a high level of responsibility pay more attention to their health and respond better to treatment.