High Blood Sugar Levels Linked to Brain Shrinkage

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September 8, 2012

High blood sugar levels may take a toll on the brain, a new study found.
The Australian study of nearly 250 non-diabetic men and women found those with high blood sugar levels tended to have shrinking in brain areas linked to memory and emotional processing. The results held up even after controlling for lifestyle factors such as smoking and weight.
“If replicated, this finding may contribute to a reevaluation of the concept of normal blood glucose levels and the definition of diabetes,” wrote study author Dr. Nicolas Cherbuin, director of the Neuroimaging and Brain Lab at Australian National University in Canberra, Australia.
Previous research has linked diabetes, a disorder in which blood sugar levels are abnormally high, to age-related cognitive decline. But the new study, published Monday in the journal Neurology, suggested controlling blood sugar levels could boost cognitive health in non-diabetics.

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