It's generally known that after 3 or 4 days of total sleeplessness there is permanent psychological damage which is probably physiological in nature. IIRC There was a radio show host who hosted his show for several days straight as a stunt and it really messed him up.
I didn't write that phrase precisely because people turn off their brains and learn nothing from it! It's become worthless.
The alternative to A -> B is B -> A, or C -> A and B.
You seriously think that running through those possibilities in your head is "dogmatism"?
Who then is the authority on which one of those is privileged and which require further research to validate, when they are all consistent with the evidence so far?
Had to Google that, though it does sound temporary?
Pure speculation of course, but it seems possible that low quality sleep would impair this system.
How is that an explanation? Something has to drive the sleep disorder. It's too vague to be blaming for anything. It's not a thing.
May be there are multiple thing that drives sleep disorder and and then that causes Alzheimer.
Why on earth do people (you're not alone, I know) prefer to assume that direction of causation, rather than that the underlying condition that leads to Alzheimer's causes sleep disorders too?
It's well known that sleep disorders are associated with other neurological or mental disorders.
I think there is a pervasive disease of thinking where people associate science and smart people with counterintuitive statements, so every obvious relationship gets inverted.
And can you answer the basic question of why sleep is even necessary at all?
Lack of sleep is eventually lethal, and I read a very interesting study a couple years ago that seemed to have a plausible mechanism and stunningly reasonable methodology, but I haven't heard anything about it since then. So I still don't know if it was fake or something, because it seemed like it should get a Nobel Prize. Although it used fruit flies so perhaps it didn't generalize.