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A new blood test called p-Tau 217 can detect Alzheimer’s disease years, sometimes decades before symptoms begin. Here’s how it works, why it matters, and what you can do if levels are rising.

References
https://time.com/collections/best-inventions-2024/7094900/alzpath-ptau217-antibody/
https://jamanetwork.com/journals/jama/fullarticle/2768841
https://pubmed.ncbi.nlm.nih.gov/33068398/
https://www.nejm.org/doi/full/10.1056/NEJMoa2310168?
https://www.aafp.org/pubs/afp/issues/2025/1200/suspected-dementia-evaluation.html
https://pubmed.ncbi.nlm.nih.gov/40997839/

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