If exercise reduced risk of dementia by 99% would you still feel compelled to point out that it "doesn't appear to be the singular cause of increased wellness"?
Where's your threshold?
We literally have the solution. What you're saying, while it is technically true, seems to be more of an excuse or justification not to exercise. Perhaps I'm reading too much into your comment.
This is something I’ve been digging deep into and discovering a lot of seemingly safe assumptions turn out not to be.
I do expect exercise is a major factor here (perhaps the largest), but I’m acutely aware lately that these things, especially where nutrition could be a significant factor, are rarely ever cut and dry. It’s incredibly complex.
I don’t mean to say people shouldn’t exercise. I should have emphasized that, without a doubt. We know beyond any shadow of doubt that it improves quality of life dramatically for virtually everyone.
Incredible results but I think the specifics are worth using when they’re available.
Also, there is no cause and effect here, though vascular origin dementia as noted seems almost certainly to be reduced by better cardiovascular fitness, as are many other vascular issues. Having said that, vascular and arterial lining damage due to diet appears not to be resolved by exercise, and could very easily be a culprit here as well. Fitness is a great tool for general well-being, but it doesn’t appear to be the singular cause of increased wellness here.