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![bryan_johnson Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::17468569.png) Bryan Johnson [@bryan_johnson](/creator/twitter/bryan_johnson) on x 626.1K followers
Created: 2025-06-17 15:45:21 UTC

You can now measure your risk of Alzheimer’s before symptoms appear.

pTau217 and A𝛃42 are recent FDA-approved biomarkers for Alzheimer's detection in symptomatic patients. They also predict future dementia risk in healthy individuals, according to recent studies. 🧵

![](https://pbs.twimg.com/media/GtqAj51bgAEPb1a.jpg)

XXXXXXX engagements

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