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I am not sure if it would map to dementia, but:

> The results highlighted a significant slowing of aging indicators, notably a roughly 6-year regression in brain aging.

And some people call Alzheimer's type 3 diabetes. So there could be something protective?

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Diabetes causes rupturing of small blood vessels, which has been seen in eyes and feet. It would follow that the same is happening in the brain and an anti-diabetic medicine would directly improve brain longevity in affected individuals.

*I am not a doctor, but also I can correlate data without bias.

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