Why metabolic syndrome is linked to cognitive decline?

October, 2012

Preliminary results for a small study indicate metabolic syndrome is linked to significantly reduced blood flow in the brain, perhaps explaining its link to cognitive impairment.

I’ve reported before on the growing evidence that metabolic syndrome in middle and old age is linked to greater risk of cognitive impairment in old age and faster decline. A new study shows at least part of the reason.

The study involved 71 middle-aged people recruited from the Wisconsin Registry for Alzheimer's Prevention (WRAP), of whom 29 met the criteria for metabolic syndrome (multiple cardiovascular and diabetes risk factors including abdominal obesity, high blood pressure, high blood sugar and high cholesterol).

Those with metabolic syndrome averaged 15% less blood flow to the brain than those without the syndrome.

One tried and true method of increasing blood flow to the brain is of course through exercise.

Reference: 

The study was presented at the Alzheimer's Association International Conference in Vancouver, Canada by Barbara Bendlin.

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