Blood glucose is supposed to be regulated by the pancreatic hormone insulin. But for various reasons, the process doesn’t work correctly among people with diabetes.

The American Diabetes Association mentions these possible causes of a blood glucose spike:

• Eating something that contains more carbohydrates than you normally eat.
• Getting insufficient exercise.
• Having side effects of medication.
• Having hormonal changes.
• Being sick.
• Being under emotional stress.

Source: HealthDay