The study's authors conclude:
Our results show that insulin resistance, a prevalent and increasingly common condition in developed countries, is associated with significantly lower regional cerebral glucose metabolism, which in turn may predict worse memory performance. Mid-life may be a critical period for initiating treatments to lower peripheral insulin resistance to maintain neural metabolism and cognitive function.
They aren't allowed to express unproven personal views, but I am! The enemies of health in middle age are the armchair, advertised processed foods and the TV.
150 participants with a median age of 60.7 years were studied.