The modern way of life characterized by excessive sitting and insufficient physical activity, as well as unbalanced and irregular diet combined with stressful and busy life, contributes to the development of numerous chronic conditions, one of which is metabolic syndrome. This syndrome does not have a simple pathogenesis, but is the result of a set of risk factors such as visceral obesity, which causes inflammatory processes in the body and contributes to the release of excess free fatty acids into the body, hypertension, dyslipidemia and insulin resistance. Long-term exposure to a state of elevated blood sugar levels despite increased insulin secretion in the pancreas that occurs due to insulin resistance leads to diabetes, heart attacks and strokes, and decreased kidney function.. Nurses play a key role as educators in patients with metabolic syndrome. An individual approach to educating and motivating patients to implement a lifestyle modification program (diet, exercise, smoking cessation, and alcohol consumption) is crucial and effective in primary and secondary prevention of complications that may result from metabolic syndrome, primarily cardiovascular disease. By taking responsibility for one's own health, the everyday functioning of patients is improved and the quality of their lives is raised. AIM: The aim of the research is to understand the pathogenesis of the metabolic syndrome and its correlation with critical factors and to fully explain the role of the nurse as an educator in the care of patients with the metabolic syndrome. The educational role of the nurse / technician is crucial given that the essential factor on which the outcome of metabolic syndrome treatment depends is a change in lifestyle and habits such as increased physical activity, introduction of a better diet and smoking cessation and alcohol consumption cessation. METODHS: Narrative literature review is presented based on a search of scientific and professional articles and publications available in the databases of Medline, scholar.google.hr and hrcak.srce.hr. The database search was performed on the basis of the keywords "metabolic syndrome", "nursing management", "nurse specialist" and "educational role" in English and Croatian in the PubMed and hrcak.srce.hr databases. Search returned 137,000 results. Then the search was narrowed according to the criterion of recent results, and the limit year was 2012. research on the subject. The shortlist includes articles that deal with the impact of the role of the educator nurse on the quality of life and the outcome of treatment of patients with metabolic syndrome, and the paper presents a total of six studies on this topic. RESULTS: According to research by Pincera and associates., An individual and long-term approach to educating and motivating the patient to adopt healthy habits is crucial in the successful development of a responsible approach of the patient to care for their own health [31]. Chang, Fritschi, and Kim, on the other hand, did research on the impact of education and lifestyle changes on hypertension. The results of the study showed that the program based on nursing interventions resulted in more successful outcomes in terms of changes in systolic and diastolic pressure and waist circumference than in the control group. Through an analysis of a total of five different lifestyle change programs, Chia-Huei and colleagues also confirmed that education and promotion of healthy eating and exercise and counseling and motivation have positive outcomes on systolic and diastolic blood pressure and waist circumference and blood triglyceride levels. The results of research by Iquiz and associates indicate that the implementation of educational programs by nurses / technicians has resulted in numerous physical health benefits for target groups of patients, in terms of caring for their own health, improving functionality and quality of life [34]. The results of a study by Lawler et al showed a positive effect of nursing interventions on the patient's condition by reducing the time and frequency of hospitalizations and increasing patient satisfaction through education of patients with diabetes [34]. Poljičanin and colleagues conducted a CroHort study on the impact of educational and motivational measures implemented by nurses at the community level, which resulted in the realization of the great impact of motivation of patients on improving the parameters and values of hyperlipidemia, hypertension and body weight. The research of Felix and co-workers is based on the assessment of standards for setting nursing diagnoses and interventions and has resulted in a high degree of compliance of the nursing diagnosis process based on the theoretical framework of human needs with the ICNP® 2015 standard. [36]. CONCLUSION: Metabolic syndrome is considered a condition resulted because of the accumulation of genetic factors, a modern lifestyle without sufficient physical activity and inadequate nutrition, and harmful lifestyle habits. Criteria for the diagnosis of metabolic syndrome vary, but risk factors include visceral obesity, hypelipidemia, hypertension, insulin resistance, and hypoglycemia. If a patient has three of the five listed risk factors, he is diagnosed with metabolic syndrome. The impact of the interventions of nurses / technicians on the improvement of the condition and the treatment of the causes of the metabolic syndrome is not negligible. Motivation, education and counseling of patients greatly contribute to the reduction of the values of hyperlipidemia, hypertension and body weight of patients, and this is achieved by timely diagnosis of the causes and individual holistic approach to patients.