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1 Insulin sensitivity is increased, so your cells are better able to use any available insulin to take up glucose during and after activity. 2  When your muscles contract during activity, it stimulates another mechanism that is completely separate of insulin.
Exercise will help your cells use insulin better and help you manage your blood sugar and avoid too much insulin in your blood and brain. Physical activity brings oxygen-rich blood to your brain, and it lowers your risk of heart disease.