Neuroglycopenia is a medical term that refers to a shortage of glucose (glycopenia) in the brain, usually due to hypoglycemia. Glycopenia affects the function of neurons, and alters brain function and behavior. Prolonged neuroglycopenia can result in permanent damage to the brain.[citation needed]
Signs and symptoms of neuroglycopenia
http://en.wikipedia.org/wiki/Neuroglycopenia