A new study ties higher blood sugar to the risk of dementia.

FOX News Radio's Lisa Lacerra reports:

Higher levels of blood glucose, even those well short of diabetes, seemed to raise the risk of dementia, according to a new study by the National Institute on Aging. The study tracked blood sugar over many years in people with and without diabetes. Researchers finding the higher the blood sugar, the greater the chance the person would develop dementia... regardless of whether they had diabetes. Alzheimer's disease is the more common form of dementia, and doctors have long known that diabetes makes dementia more likely. The study published in Thursday's New England Journal of Medicine.

Lisa Lacerra, FOX News Radio.