Biomarkers for runners

Articles under this tag cover blood and performance biomarkers that help runners track recovery, endurance adaptation, inflammation, and injury risk. Learn which labs matter most for men’s health and optimization so you can train smarter, manage fatigue, and support long-term performance.

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The essentials for biomarkers for runners — then explore the latest posts below.

Essential biomarkers runners should track to run faster and avoid injury

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Dec 04, 2025 · 14 min read

Key biomarkers runners should track include iron status (ferritin, hemoglobin), vitamin D, key hormones (cortisol, testosterone), blood-sugar markers, and inflammation/recovery signals — and many clinicians flag ferritin below about 30–35 ng/mL as a red flag for depleted iron stores that can reduce oxygen delivery and performance. Here’s how to interpret the numbers, spot problems before ...

Do runners live longer? The science behind mileage and mortality

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Dec 03, 2025 · 15 min read

In long-term studies, running as little as 5–10 minutes a day at an easy pace is linked to roughly a 3-year longer lifespan and about a 27% lower risk of all-cause mortality versus not running. The sweet spot for longevity appears to be moderate weekly volume (around 2–3 hours), not marathon-level mileage—here’s how it works ...