The difference between impaired insulin and insulin resistance is that insulin secretion may be increased in insulin resistance, and insufficient insulin secretion and functional defects in impaired insulin, it is recommended to consult a doctor. 1. Insulin resistance refers to a decrease in insulin sensitivity in the patient’s body, which requires the secretion of more insulin in order to keep blood glucose stable, which occurs when there is an exuberant secretion of insulin, causing hyperinsulinemia. 2. Impaired insulin, mainly seen in diabetic patients, due to the progression of the disease will appear the damage to the pancreatic islet function, causing insufficient insulin secretion and defective insulin function, resulting in elevated blood glucose. Patients can increase insulin sensitivity through exercise and dietary therapy, which can alleviate the rise in blood glucose caused by impaired insulin function. The diet should be light, with plenty of vegetables and foods rich in dietary fiber, and appropriate physical activity every day. Patients who are found to have impaired insulin and insulin resistance are advised to seek prompt medical attention and control their blood glucose under the guidance of a doctor.