People with chronic hyperglycemia are advised to modify their lifestyle first (including physical activity, weight loss if necessary, smoking cessation, etc.) and see their physician. Multifactorial interventions can not only significantly reduce the risk of microvascular complications and cardiovascular risks, but also lead to a significant reduction in mortality in patients with diabetes. Lifestyle changes are the foundation of diabetes therapy and should be continued throughout the course of the disease. It is also necessary to constantly see an endocrinologist and monitor fasting glucose and glycated hemoglobin values.