Student Li: Prolonged hyperglycermia will result in the damage of heart, brain, kidney and blood vessels. Many Complications will do great harm to your health. And once the complications happen, it will be very hard to treat. Only strict control of blood glucose can delay and prevent the complications from happening. I hope you can stick to the comprehensive therapy method, which is comprised of diet, medicine, exercise, and blood gluocose monitoring. This is the phone number of our department which will provide consulting service all day long. You can contact us at any time with any questions. Mr.You, we have to leave now to visit another patient. I hope you will keep in tonch with us. bye