I have asked hundreds of laymen. I read a few thousand articles. I have asked nurses, doctors and research scientists. My thoughts, for what they are worth, come down to this:
I think it is what we “ingest.”
definition of “ingest” – taking food, drink, or another substance into the body by swallowing or absorbing it.
I think other factors play a role in who may not get alzheimer’s, or how quickly it progresses.
Yep, I think it’s what we ingest.