I remember the hysteria regarding aluminum cookware when higher levels of aluminum were discovered in the brains of those who had had Alzheimer's disease. Then

I remember the hysteria regarding aluminum cookware when higher levels of aluminum were discovered in the brains of those who had had Alzheimer's disease. Then it turned out that the aluminum content may simply have been an effect of the disease, not a cause (and aluminum cookware was once again declared, for the most part, safe). Now, with this new finding, I wonder if part of the Alzheimer's pathogenesis isn't a leaky brain-blood barrier or something similar that allows substances that shouldn't be in the brain through?