We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
I don't know MissT. The only thing I can pass on is that apparently quality breathing during sleep is important. We just learned from an older relative that she had her partner tested to find out what kind of dementia he had. She suspected the big A. She was told it was a potentially fully reversible sleep apnea caused loss. It would take at least 6 months to reverse under treatment. Overweight can cause sleep apnea so there's that connection too. I hope we get to witness some stellar results from improved sleep aeration.
I've heard that exercise helps prevent dementia. It seems to be working for my Dad who is a fanatic about walking briskly every day. His is 90, and almost died a few years ago from pneumonia and sepsis. After the illness he experienced a sharp decline in functioning, and we thought he would continue to decline, but he slowly came back and is getting more "with it" all the time, despite also having sever hearing loss. I do think the brisk daily walks are the reason. His diet may be a contributing factor too. He eats a lot of fruit, but no sugar otherwise, and basically a Mediterranean diet. I may have to follow suit.