“I got upset when the doctor told me I had diabetes,” said Yurii. “Because uneaten sweets are waiting for me at home, and we've already bought lemonade for New Year's.”

Yurii is 16 years old, and every day he starts with a long-acting insulin injection. Later throughout the day, ten minutes before each meal, he measures his blood sugar levels, calculates the amount of carbohydrates he will get from food, injects the appropriate dose of insulin.