Diabetics prone to lethargy , mainly because of diabetic patients with metabolic disorders , blood sugar can not be the body ( such as brain tissue ) fully utilized, resulting in elevated blood sugar, a lot of sugar in the urine , can cause physical loss, listlessness, and even the central oxidative stress decreased nervous system , causing drowsiness ; elderly diabetic patients are often concomitant hyperviscosity and cerebrovascular diseases ( such as cerebral arteriosclerosis , etc. ) , resulting in cerebral arterial insufficiency of oxygen . The brain is very sensitive to oxygen , brain ischemia and hypoxia that causes frequent yawning , sleepy ; When the development of diabetes to diabetic ketoacidosis or diabetic hyperosmolar coma , because dehydration can cause metabolic disorders and patient drowsiness ; type 2 diabetes in the early fasting hypoglycemia often as " the first manifestation ", and hypoglycemia in older people easily expressed as lethargy .
The study found that diabetes and daytime sleepiness have a very close relationship , the possibility of daytime sleepiness in patients with diabetes is nearly twice the others . For the less usual sense , the recent unexplained drowsiness elderly, should be alert to diabetes, to the hospital as soon as possible to rule out a variety of potential diseases including diabetes , to avoid delaying the disease.