Testing your blood glucose right after a walk can lead to testing errors. It is better to rest for half an hour after walking before testing, so that the blood glucose tested will be more accurate. After a walk, the patient’s body will promote the secretion of adrenaline, glucocorticoids and glucagon in different degrees, and the elevation of glucagon will promote the breakdown of glycogen into glucose, resulting in an increase in blood glucose. At the same time, adrenaline and glucocorticoids will also raise blood sugar, so patients’ blood sugar will usually be high just after a walk. In addition to testing blood glucose after half an hour of rest after a walk, diabetic patients should also rest before testing after morning exercise, and should not test after exercise, as this will easily lead to high blood glucose test results, which will mislead the body’s processing of blood glucose at this time. If the blood glucose test is high, increasing medication will easily lead to hypoglycemia. Appropriate exercise for diabetic patients is beneficial to the body, because appropriate exercise can increase the sensitivity of peripheral tissues to insulin, so that the metabolism of blood glucose is more perfect, conducive to the control of blood glucose, but must master the time, 20-30 minutes appropriate, and do not just walk or exercise on the test of blood glucose, which is easy to cause errors.