Many patients know the phrase “keep your mouth shut and your legs open”, but the meaning of it is not very clear. Control your mouth: Not just asking patients to eat less. Patients often complain that they are already eating very little, and any less would be a hunger strike. The key is to adjust the structure of the diet, mix the coarse with the fine, the meat with the vegetarian, and the regular ration. Open your legs: It is not necessary to walk more. Diabetic patients often have lower limb knee, ankle, and even lumbar spine lesions, excessive walking is not conducive to joint lesion recovery. Older people may be combined with cardiovascular and cerebrovascular pathology, walking for a long time has some difficulties. Stepping out refers to the regular contraction and stretching of the muscles of the whole body and doing aerobic exercise.