# Why Your Fitness Level Predicts How Long You'll Live Better Than Step Counts

*Physical activity, fitness, and longevity.*

- **Evidence Level**: Moderate
- **Publication Types**: Journal Article, Review
- **Journal**: Progress in cardiovascular diseases
- **Sample Size**: N/A
- **Authors**: Sanchis-Gomar F, Lavie CJ, Rodriguez F, Kokkinos P, Franklin BA
- **Published**: 2026-07-22
- **Topics**: fitness, longevity, exercise
- **DOI**: https://doi.org/10.1016/j.pcad.2026.07.004
- **Original Source**: https://pubmed.ncbi.nlm.nih.gov/42486314/

## Summary

This review of the evidence says being physically active and, even more so, being fit is strongly tied to living longer. Fitness measured directly beats what people report about their own activity for predicting risk. The benefits grow with more activity, and intensity matters, though the authors note some heart rhythm risks in extreme endurance athletes.

## Practical Takeaway

This review suggests treating your cardio fitness as a key health marker may matter for longevity.

---

_Canonical: https://longevity-germany.com/en/research/why-your-fitness-level-predicts-how-long-you-ll-live-better-than-step-counts · Part of Longevity Cities · Updated 2026-07-22_