With type 2 diabetes, poor blood sugar control typically results in hyperglycemia or high blood sugar, which can cause fatigue among other symptoms.

Can high blood sugar make you sleepy?

Fatigue is a common symptom of diabetes and can result from high blood sugar levels and other symptoms and complications of the condition. Some lifestyle changes can help a person manage diabetes fatigue. Fatigue and tiredness are not the same. When a person is tired, they usually feel better after resting.

Why does high sugar make you sleepy?

High sugar consumption inhibits the production of Orexin, which is a chemical in your brain that stimulates the feeling of being awake. The more sugar you eat, the more sleepy you will feel.