# A Blood Test for Muscle and Bone Age Flags Who Ages Faster

_Evidence Level: Moderate · Zhong Y et al., Aging cell, DOI 10.1111/acel.70636_

*Construction and Validation of Plasma Protein-Based Musculoskeletal Biological Age and Genetic and Environmental Risk Profiles.*

- **Evidence Level**: Moderate
- **Why this grade**: Observational analysis of proteomic data from 21,070 UK Biobank adults, with the clocks built and tested in a single cohort and no external replication yet.
- **Facts**: Funding: Recruitment Program for Young Professionals of China; Science Fund for…
- **Publication Types**: Journal Article
- **Journal**: Aging cell
- **Sample Size**: 21,070 UK Biobank adults
- **Authors**: Zhong Y, Xia M, Zhao X, Qu Y, Lei B, Zhen S, Han T, Xiang R, Xiao J, Song X, Ma X, Yang B, Zhang D, Zhou J, Chen Z, Pang Y, Ju Y, Liu T, Li Z, Long L, Zhang T, Li J, Fan M, Liu Z, Jiang X
- **Graded and published**: 2026-08-01
- **Last edited**: 2026-09-17
- **Topics**: Biological Age, Musculoskeletal Health, Biomarkers
- **DOI**: https://doi.org/10.1111/acel.70636
- **Free full text**: https://pmc.ncbi.nlm.nih.gov/articles/PMC13401616/
- **Original Source**: https://pubmed.ncbi.nlm.nih.gov/42649044/

## Summary

Researchers built a clock from 39 blood proteins that estimates how old your muscles, bones, and joints really are. People whose musculoskeletal age ran ahead of their birthday age had higher risk of death, osteoarthritis, gout, and back pain. Pollution, stress, and unhealthy habits pushed the clock faster. Zinc showed up as a possible target for musculoskeletal disease, though that part is just a computer prediction.

## Practical Takeaway

This study suggests lifestyle and environment influence how fast your muscles and joints age.

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_Canonical: https://longevity-germany.com/en/research/a-blood-test-for-muscle-and-bone-age-flags-who-ages-faster · Part of Longevity Cities · Updated 2026-09-17_