PR. S. BRION / CNRI / SCIENCE PHOTO LIBRARY PR. S. BRION / CNRI / SCIENCE PHOTO LIBRARY
Brain in dementia. Light micrograph of a section through the hippocampus of a brain of a person affected by dementia, showing plaques (dark areas) and neural degeneration. Dementia is mainly a disease of old age. It has varying symptoms depending upon the areas of the brain affected, but these may include, confusion, loss of memory, personality changes and neglect of personal care. Often the cause is unknown and there is no cure.
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