Generally speaking, impaired glucose tolerance can return to normal within six months after exercise intervention with a reasonable diet, which varies from person to person. Patients with impaired glucose tolerance can usually reverse their impaired glucose tolerance and reduce the risk of diabetes within six months through a series of lifestyle interventions, such as dietary adjustments and increased exercise, under the guidance of a doctor or health manager. 1. Dietary adjustment: Balance nutrition, control the total calories, and control the proportion of carbohydrates, fats and proteins. Eat a light diet, preferably low-fat and less oil, less sugar and less salt, while increasing the intake of vitamins and minerals. Meals should be regular, small and frequent, while limiting alcohol and quitting smoking. 2. Increase exercise: Develop a reasonable exercise program, focusing on aerobic exercise, such as jogging, swimming, playing ball games, hiking, cycling and so on. In terms of exercise frequency, no less than 5 days of moderate-intensity exercise per week should be maintained, and the duration of each exercise should be no less than 30 minutes. After the diagnosis is clear, patients with impaired glucose tolerance should take the initiative to seek medical treatment, choose appropriate interventions or treatment programs, and actively control hyperglycemia and related risk factors.