Patient：（Excited）Yes，ido. But two months ago, one of my friends recommended a new anti-diabetes drug called,"xx Lowing Glucose Grain", which could control blood glucose without diet control or using other drugs. My friend took it and felt very good, so he suggested me to try it. You can see the advertisement on the newspaper everyday. I read every word. They promise it  will work.

Student Li: Yes. There are advertisements on lots of newspapers. One of my relatives took the drug and said the same thing.

Nurse: Could i see the container of the drug?

Patient: Of course. Here you are

Nurse: Mr. You, and students, let's read it carefully. There is no manufacturer's information on it. It's an uncertified product. Could you tell me the reason why you think it is good?

Student Li: My relative said that he felt excellent, vigorous and strong after taking this drug.

Patient: Yeah. I am full of energy after taking the drug. I don't even feel sick.

Nurse: Yeah. You only talk about your feelings. Did you have your blood glucose level checked?

Patient: No,I didn't. But i feel so good. There should not be anything wrong with me.

Nurse: I have a glucometer with me. Let me measure your blood glucose now. well, you see it is 23.4mmol/l

Patient: Ah! It's that high! But i don't feel a thing. Why? Is that machine accurate?

Nurse: I adjusted it before leaving the hospital. Of course it's accurate

Nurse：Mr .You and students, the diabetes prevalence in China has reached 4.5%, and as high as 10% in coastal cities. Considering the large population of ourcountry, the absolute number of diabetic patients is gigantic. Because the public lack of diabetes education, some illegal drug retailers seized the opportunity and manufactured these fake drugs. Some even gave the promises of curing diabetes once and for all, or treating diabetes without the need of diet control. Miss Li, can you please talk about the harms of prolonged hyperglycermia?