I have uncontrolled Type 1 diabetes. No pancreas, no insulin to call my own. I’ll bet some of those tested don’t get much physical exercise. I don’t think the article mentioned it in their testing. When I exercise I notice glucose levels go down faster and I have to use less insulin after a meal.
Same thing for mental exercise (intense concentration and problem solving for instance) will burn glucose at a faster rate. When I use my brain, I find I sometimes experience unexpected lows.
Anyway, the complications from diabetes or old age will eventually get me, so Alzheimers will just have to get in line. Besides if I remember who is the current POTUS, I’ll pass the Alzheimer test and no one will ever know.
My dear departed dad’s doctors used to ask him that question periodically just to see if he still had all his ducks in a row. He told me to write it down somewhere cause I’ll be asked the same question when I get to be his age (87 yo). If I make it that far, I just hope I can remember where I wrote it down. Anyway, I could never remember names.
P.S. After mama passed, he quickly lost it and couldn’t remember jack the last year of his life. So I think emotional stress and one’s attitude can pay a part in developing Alzheimers.