Hyperinsulinemia is a condition in which the insulin level in the body is too high. Hyperinsulinemia can be pre-diabetic or can occur in diabetic patients. When insulin resistance occurs in patients due to obesity and other reasons, insulin resistance is a certain amount of insulin that cannot play a corresponding role in lowering blood glucose. The body will promote insulin secretion by pancreatic beta cells in order to maintain normal blood glucose concentration and avoid elevated blood glucose, and hyperinsulinemia will occur, so a state of hyperinsulinemia but normal blood glucose will occur in the early stage. When the elevated insulin can not make the blood glucose control in normal, there will be high insulin, high blood glucose state is also the emergence of diabetes, with the further progress of the disease, long-term excessive insulin secretion will lead to pancreatic β cell failure, resulting in further reduction of insulin secretion, blood glucose further increase, so the prevention of diabetes should do: First, diet control, avoid high calorie, high fat, high sugar Diet, avoid high-calorie, high-fat, high-sugar diet, so as not to increase the burden of pancreatic β-cell function and lead to islet β-cell failure. Second, maintain the ideal weight, avoid obesity, obesity is an important cause of insulin resistance. Third, increase the amount of exercise, exercise can improve insulin resistance, enhance insulin sensitivity, and also help control weight.