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How fast are you ageing? Ordinary brain scans reveal the pace. Images hold clues to risk of dementia and various age-related diseases:

Here’s the overview article

https://www.nature.com/articles/d41586-025-02086-9

and the Nature Aging paper itself

https://www.nature.com/articles/s43587-025-00897-z

It’s still just a research tool but sounds promising.

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