Untangling Dementia: Misdiagnoses, Modest Treatments, and Real Limits

The piece argues dementia is a syndrome with several distinct diseases (Alzheimer’s, Lewy body dementia, frontotemporal dementia, vascular dementia). Through Robin Williams and Bruce Willis, it shows how live diagnoses can be wrong, and it critiques the dominant amyloid hypothesis, noting a retraced foundational paper and the mixed success of anti-amyloid drugs that slow decline only modestly and carry risks. It warns against overreliance on new blood tests or supplements that promise certainty or cures, and it emphasizes the value of accurate diagnosis, humane care, harm prevention, and risk-factor management (heart health, hearing, activity, social engagement) as the true, honest path forward.