If diabetes has not been diagnosed, the blood sugar belongs to pre-diabetes, long-term physical activity has the potential to lower blood sugar; however, if diabetes has been diagnosed, purely by physical activity can not lower blood sugar, but moderate physical activity can help control blood sugar and weight. The treatment of pre-diabetes is based on diet control and moderate exercise. Long-term physical activity has the potential to lower blood sugar and return to normal levels. Because physical activity can burn energy and increase insulin sensitivity, it helps control blood sugar and weight, and it also needs to be combined with dietary adjustments for joint glycemic control. However, if you have been diagnosed with diabetes, physical activity alone can not lower blood sugar, you need to follow the medical advice to use hypoglycemic drugs, such as metformin, insulin, etc., along with dietary control and moderate exercise, in order to achieve the purpose of lowering blood sugar. In addition, diabetic patients should not do excessive physical work for a long time to prevent hypoglycemia. It is recommended that patients with abnormal blood glucose should seek medical attention in time.