Hypoglycemia is a blood sugar reading that is less than 70mg/dl and is a very dangerous complication for people with diabetes. Schedule changes, skipping meals, increased physical activity, as well as improper insulin dosing, medication timing, and more can increase the risk of a low blood sugar reading.
Since glucose is the main source of fuel used for the brain and muscles to perform daily tasks and activities, you can see why preventing hypoglycemia is a priority. The best way to treat hypoglycemia is to avoid it!