# Blood test could predict dementia decades before symptoms first appear

> Long before the brain undergoes a level of degeneration that destroys precious memories, the body could be crying for help.

- **Source:** [Refractor](https://refractor.io/brain/protein-predict-dementia-before-symptoms-appear/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6a4bcff9254f0da55deb5807)
- **Published:** 2026-07-06
- **Category:** Science
- **Tags:** #dementia #before #blood #appear #decades #gdf15 #predict #researchers
- **Canonical:** http://localhost:4321/a/6a4bcff9254f0da55deb5807

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_GearOpen's distilled summary. The full original article is published at Refractor (source link above); GearOpen does not republish the source's full text._