Alzheimer 's disease par . 8 . On the next stage of Alzheimer 's , more of the cortex and neurons are being destroyed . The patient begins having terrible memory retention , and sometimes would forget important tasks . More often , the moderate stage of the disease also brings about inability to do simple things , such as eating and brushing (Alzheimer 's disease par . 9 . Finally , upon reaching the advanced stage of the disease , patients are seen to be aggressive and begin having problems with...











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