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HRV and Testosterone: The Hidden Hormone Signal Men Over 40 Must Track to Reclaim Performance and Vitality

HRV and Testosterone: The Hidden Hormone Signal Men Over 40 Must Track to Reclaim Performance and VitalityBy: Dr. Andreas Boettcher Published on: 15/01/2026

Heart rate variability is the key biomarker men over 40 must track. Discover how HRV predicts testosterone, metabolic health, and performance — without drugs or TRT.

HormonesNutritionFitnessCase Study
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HRV and Testosterone: The Hidden Hormone Signal Men Over 40 Must Track to Reclaim Performance and Vitality

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