Does blood sugar come down with exercise and go up without it?

Blood sugar is lowered by exercise and may rise without exercise.
Exercise can increase insulin sensitivity in patients with hyperglycemia, which then serves the purpose of controlling blood sugar. If the high blood sugar caused by diabetes, often need lifelong treatment, if the diabetic patient stops exercising, especially obese type 2 diabetic patients, blood sugar may rise again after stopping exercise.
Patients with hyperglycemia should exercise properly and manage their diets well. If they cannot control their blood glucose well with non-pharmacological treatments, they need to take medication to control their blood glucose under the guidance of a doctor, such as oral hypoglycemic drugs like metformin and acarbose or insulin injections.
Patients diagnosed with hyperglycemia should actively cooperate with the doctor’s treatment, which helps to maintain blood sugar stability.