Hot off the press new protocol for improving cognitive function and reversing many measurable parameters of  mild cognitive impairment (MCI), the precursor to early dementia and eventually Alzheimer’s, which until now has been considered an irreversible disease.  No drugs have worked.  The “new protocol” (book will be published in the spring, by Dr. Dale Bredesen) states that our brains make amyloid to PROTECT against toxic insults, which are the actual cause of decay of cognitive function.  Dr. Bredesen talks about 3 types of Alzheimer’s, which has been borne out by many meta-analyses.