High Normal Blood-Sugar Levels Can Lead to Brain Shrinkage

A new study has found that blood-sugar levels that are at the upper end of the normal range can still be detrimental to the brain.

Being on the high end of the normal range - in other words, not high enough to be classified as diabetes or prediabetes - can make somebody more likely to have brain shrinkage in certain areas than people with lower blood-sugar levels. Previous studies had linked Type 2 diabetes to brain shrinkage.

The researchers noted that their findings could lead to the reevaluation of normal blood-sugar levels and the definition of diabetes.

The study involved 249 people, aged 60 to 64, whose blood-sugar levels were in the normal range as defined by the World Health Organization (WHO).

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