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Alzheimer's Disease and the Brain
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13. Progression through the brain

Plaques and tangles (shown in the blue-shaded areas) tend to spread through the cortex in a predictable pattern as Alzheimer’s disease progresses.

The rate of progression varies greatly. People with Alzheimer’s live an average of eight years, but some people may survive up to 20 years. The course of the disease depends in part on age at diagnosis and whether a person has other health conditions.

©2009 Alzheimer's Association. www.alz.org. All rights reserved. Illustrations by Stacy Janis.
This is an official publication of the Alzheimer’s Association but may be distributed by unaffiliated organizations and individuals. Such distribution does not constitute an endorsement of these parties or their activities by the Alzheimer’s Association.