Question: what is the difference between alzheimer's dementia and parkinson's?
Answer: Alzheimer's disease has clumps of two main proteins: beta-amyloid and tau. Clumps of beta-amyloid are called plaques, and tau clumps are called tangles. Parkinson's disease has Lewy bodies in key areas of the brain that control movement; Lewy bodies are composed of the protein alpha-synuclein.