A new paradigm for Alzheimer's is developing that suggests it’s more of an auto immune mediated effect on the brain, and various possibilities being explored. This recent write up via Donald Weaver, Professor of Chemistry and Director of Krembil Research Institute, University Health Network, University of Toronto explores some of the possibilities worth viewing:

"Alzheimer's May Not Actually Be a Brain Disease, Expert Says"

https://www.sciencealert.com/alzheim...se-expert-says