# Combining Wearables With Blood Proteins Sharpens Biological Age Tests

*A Multimodal Framework for Organ- and Cell-Resolved Biological Aging and Longevity Intervention Discovery.*

- **Evidence Level**: Preliminary
- **Publication Types**: Journal Article, Preprint
- **Journal**: medRxiv : the preprint server for health sciences
- **Sample Size**: UK Biobank participants (exact number not specified)
- **Authors**: Al Dajani SA, Williams JR, Fuentealba M, Zhai T, Furman D, Snyder M, Abudayyeh OO, Gootenberg JS, Gladyshev VN
- **Published**: 2026-05-12
- **Topics**: biological age, biomarkers, wearables
- **DOI**: https://doi.org/10.64898/2026.05.08.26352759
- **Original Source**: https://pubmed.ncbi.nlm.nih.gov/42180333/

## Summary

Researchers built a new biological age model that combines blood protein data with wearable device readings. It predicted mortality risk better than either tool alone and cut prediction error by 21%. The model also flagged common drugs like GLP-1 agonists and ACE inhibitors as linked to a younger biological age in specific organ systems.

## Practical Takeaway

This research suggests that combining wearable data with blood biomarkers may give a clearer picture of biological aging.

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