Alzheimer's disease is a neurodegenerative disorder marked by cognitive and behavioral impairment that significantly interferes with social and occupational functioning. It is estimated that the global prevalence of Alzheimer's dementia is approximately 32 million; furthermore, 315 million individuals worldwide have preclinical Alzheimer's disease.
This disease is incurable and has a long preclinical period and progressive course. Plaques and tangles develop in the hippocampus, a structure deep in the brain that helps to encode memories, and in other areas of the cerebral cortex that are involved in thinking and decision-making. Whether plaques and tangles themselves cause Alzheimer's disease or whether they are a by-product of the process remains unknown. Currently, an autopsy or brain biopsy is the only way to definitively diagnose Alzheimer's disease.
Do you know key elements of Alzheimer's disease? Test your knowledge with this quick quiz.
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Cite this: Fast Five Quiz: Test Your Knowledge on Key Aspects of Alzheimer's Disease - Medscape - Aug 21, 2023.