Medically reviewed by Sohaib Imtiaz, MD Key Takeaways High and low blood sugar can cause symptoms that affect energy, mood, ...

Blood sugar can go up at night for various reasons in people with diabetes. One potential reason is a drop in insulin. If a person’s insulin pump does not provide enough background insulin overnight, ...

For people with diabetes, regularly checking their blood sugar levels is part of their daily life. But if you don't have diabetes, you likely aren't measuring your blood sugar very often, if at all.