Here's an article about the correlation between elevated blood sugar levels and dementia.
Quoting from the article "Among the patients with diabetes, glucose levels averaged 190 mg/dL in those who developed dementia versus 160 mg/dL in those who did not. The difference represented a 40% increase in the hazard for dementia)."
Average glucose levels of 190 mg/dL equates to an A1C of 10.5, and 160 mg/dL = an A1C of 7.2 It has been hypothesized that the brain like other cells of the body suffer from insulin resistance and this leads to dementia because the brain cells are lacking a source of energy.
If this link proves true it means that in addition to an epidemic of T2 we may be facing a tsunami of dementia in the coming years.
Is this something that worries you? Will it add some additional motivation to keep you numbers as low as possible? It seems to be another place where investment upfront, in better diabetes care, can save lots of money in the long run.
Here's a link to a synopsis of the original article in the New England Journal of Medicine.