I only skim reading researches in Alzheimer's, a thing that I suspect is that plagues are a late stage sign for the disease. And to ameliorate it is a bit like

I only skim reading researches in Alzheimer's, a thing that I suspect is that plagues are a late stage sign for the disease. And to ameliorate it is a bit like thinking that to cure age spots can reverse aging. They are the result of the disease, not the initial factor.