Enzyme Digests Amyloid-Beta Associated with Alzheimer’s Disease
by Weill Cornell Medicine (google this, website won't let me share link in discussion).

Here's an article you may find interesting.
I found it just asking myself hypotheticals about another supplement called Olive leaf extract (oleupeurin, sp?) The active ingredient is what is lauded in olive oil. What's interesting is that the scientist's supposition is the buildup of the precursor to amyloid peptides get produced in the organs over time and then develop into the devastating plaques that for Alzheimers.
Why this should be interesting for long covid sufferers is the belief that most people were "fine" to "healthy" prior to contracting covid and Long haul covid. But interestingly, the original post i was replying to was of a triathlete. I have to say that in my practice the stressors of Tri athletes and their bodies is extraordinary. Most are superb competitors but their bodies are aged beyond their years. A colleague of mine, a doctor, said the mitochondria of endurance atheletes can be 10 years beyond their chronological age.

What the take home is from this is the want/pursuit/priority of healthier living. including exercise (or moderation for some) and other factors (drinking smoking). The average person's general health is overestimated as good.

Like the above research article intimates. These negative precursors start way before the tragic singular event.