Alzheimer's Disease (cont.)
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Alzheimer's disease causes loss of brain cells in areas of the brain. Some of the deterioration may be related to a loss of chemical messengers in the brain, called neurotransmitters, that allow nerve cells in the brain to communicate properly.
People with Alzheimer's disease have two things in the brain that are not normal: amyloid plaques and neurofibrillary tangles.
Experts don't know if amyloid plaques and neurofibrillary tangles are side effects of Alzheimer's disease or part of the cause. These plaques and tangles are not found in people who do not have the disease.
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