Type 2 diabetes can account for more than 90% of the diabetic patients in China. Therefore, the incidence of diabetes has been increasing year by year for the last 30 years, mainly due to the increasing number of people with type 2 diabetes. In fact, the prevalence of the disease in China is much higher than the reported incidence, because many people who already have type 2 diabetes continue to be “unaware” of the disease. As for the sub-healthy people with impaired fasting glucose and reduced glucose tolerance, the majority of them are not even aware of it and let it develop, and will soon join the ranks of diabetes. According to an epidemiological survey conducted in Shanghai, the number of people with diabetes and impaired glucose regulation, i.e., pre-diabetes, together account for almost a quarter of the population over the age of 20. In the last decade or so, with advances in basic and clinical research, there has been further insight into the nature of the development of type 2 diabetes. In fact, the vast majority of type 2 diabetes is a preventable, treatable, and curable disease. It is very unfortunate that almost 99% of patients become ill for life. Type 2 diabetes is a relatively slow progressing disease. The development of type 2 diabetes can go through 5 stages: 1. The first stage of islet function impairment, where the first phase of insulin secretion is impaired by intravenous glucose tolerance test, but the blood glucose is still in the normal range; 2. The stage of impaired glucose regulation, which is the subnormal state of pre-diabetes, when fasting blood glucose is greater than 5.6 mmol per liter but less than 7.0, or 2 hours after meal blood glucose is greater than 7.8 but less than 11.1, or both. 11.1, or both of them exist. 3. The insidious stage of diabetes, when the fasting blood glucose is just over 7.0, or if the oral glucose tolerance test (OGTT) is just over 11.1 2 hours after meal, or both are present. But because there are no symptoms, most of them are ignored and not found. 4, diabetes treatment stage, at this time has been clearly diagnosed and began the drug treatment, but many people are only serious about taking drugs and injections but no treatment to “achieve the standard” of awareness. 5, the complication stage, at this time can be found in patients have diabetic retinopathy, diabetic nephropathy, diabetic peripheral neuropathy, atherosclerosis, etc.. Many patients are found to have diabetes only after they have developed coronary heart disease, stroke, visual impairment and neuropathy. That is, they have progressed to the advanced stages of type 2 diabetes. For those who have a family history of diabetes and are older than 35 years old, those who are overweight or obese, those who have given birth to a huge fetus (weighing more than 8 pounds), those who are addicted to alcohol and tobacco and lead an irregular life, and those who are mentally stressed, they should have an islet function test as early as possible instead of just checking fasting or postprandial blood glucose, if in the first 3 stages of the development of type 2 diabetes, or even in the early stages of stage 4, the vast majority of patients will be diagnosed with diabetes after strict If the first 3 stages of type 2 diabetes develop, or even early in stage 4, most of them can be fully restored to a healthy state with strict lifestyle modification and appropriate pharmacological intervention. Don’t forget that type 2 diabetes has several sister diseases, such as fatty liver, hyperuricemia or gout, polycystic ovary syndrome, hypertension, hyperlipidemia, etc. Atherosclerosis can be said to be a complication as well as a sister disease, and people with these diseases must also be aware of diabetes. The reason why most of the preventable and curable type 2 diabetes has become a lifelong disease is that, firstly, it was discovered too late, and secondly, it was not taken seriously at all after it was discovered and did not receive scientific and standardized treatment, and under the wrong banner of the so-called “lowering sugar, lowering sugar and lowering sugar again”, the originally mildly damaged pancreatic islet function deteriorated continuously until it failed, turning the originally curable type 2 diabetes into a lifelong disease. The original curable type 2 diabetes has become a lifelong disease.