Do you have scientific articles about alzheimer's being a form of diabetes? The reason I ask is the only thing I've seen is questionable theories without any evidence.
We are learning a lot more about Alzheimer's and dementia in general. The things I've read seem to indicate that vitamin B-12 malabsorption (which is not only genetic for those of all ages but widespread among the elderly) and exposure to aluminum throughout life both seem to play a role in Alzheimer's.
You can't out-exercise poor eating habits.