If you tend to get low blood sugar, exercise only after you have checked your blood sugar level.
Wear shoes that fit well and polyester or blend (cotton-polyester) socks to keep your feet comfortable and to prevent blisters. Use silica gel or air midsoles in your shoes.
Drink plenty of water before, during, and after you are active. This is very important when it's hot out and when you do intense exercise.
Wear medical identification at all times. You can get medical identification, such as a bracelet, from a pharmacy or on the Internet.
Carry a quick-sugar food with you while you exercise.
Exercise can lower your blood sugar hours later. Test your blood sugar and have a plan for treating low blood sugar.
Adrenaline released with short bouts of vigorous exercise can cause high blood sugar. Combining short bursts of vigorous activity with longer moderate-intensive exercises can help prevent this problem.