Stress can take a toll on your blood sugar levels. The most common type of stress is often associated with work. When you are feeling overwhelmed and under a lot of stress, your body releases hormones that can make your increase your blood sugar. This is more common in people with type 2 diabetes. To de-stress, learn how to relax and practice deep breathing. Exercise can help too. Also, try to eliminate some of the things that are making you so stressed out.