Diabetes is the third most widespread disease in the world after the prevalence of cardiovascular diseases and cancer. Back in the I century ad Roman physician described the classic symptoms of diabetes: very thirsty, excessive urination, weight loss sometimes at a constant feeling of hunger. In the xvii century, doctors noticed that patients with such symptoms urine has a sweetish taste. Organism in this disease lose the ability to assimilate glucose, and it reached a threshold level in the blood, excreted in urine. The word diabetes means ‘pass through’, ie through the kidney barrier. To date, according to various sources in the world is from 130 to 180 million patients with diabetes, which is 2-3% of the total population of the planet. Diabetes mellitus is characterized by a high content of glucose in the blood, the appearance of sugar in the urine, disturbance of all kinds of metabolism as a result of lack of an important hormone in the body of the pancreas – insulin. There are two types of the disease. Diabetes type 1, insulin dependent, characterized by a marked shortage of production cells in the pancreas hormone insulin needed for glucose uptake. In diabetes type 2, insulin dependent, insulin may be sufficient, but glucose can not enter the cells of the body, because the tissues are insensitive to this hormone. Diabetes type 2 amenable to successful prevention, which is the normalization of body weight, increase physical activity, optimizing diet. With the prevention of diabetes type 1 is more complicated, as not fully explored launchers factors of the disease. As commented for Max-Well Science Inform Service staff of the Institute of Endocrinology and Metabolism, ams of Ukraine – Head of Surgical Department, ae and endocrinologist of clinical diabetology ov , the onset of diabetes can cause stress suffered by viral infections, including hepatitis B and C, is also important hereditary factor and overweight. Diabetes involves a complex and long-term treatment, this takes into account features of the disease and its severity, lifestyle and nutrition patient. The main task of treatment – maintain normal blood glucose and lipids in the blood. Patients with diabetes mellitus type 1 should be excluded from its menu, chocolate, candy, sugar, confectionery, and patients with diabetes mellitus type 2 have forget about the fat, carbohydrate, to limit consumption of bakery products, cereals, avoid refined sugar, flour products, preservatives, all kinds of chemical additives. In diabetes absolutely contraindicated overeating and alcohol abuse. Physical activity has a special place in the lives of people with diabetes. For example, aerobic exercise helps strengthen the cardiovascular system and are also an integral part of weight control. A leading source for info: Robert C. Robbins. Patients with diabetes is useful to swim, ride a bike, you only need to choose the right load.