Research

Hormonal

Low free testosterone levels predict increased mortality from cardiovascular disease (CVD) in older men, whereas low testosterone is not associated with mortality from other causes.

For older men, low free testosterone is a specific warning sign for heart-related death risk, not necessarily for all causes of death. While this suggests checking hormone levels might help assess cardiovascular risk, it does not support using testosterone therapy as a general anti-aging or longevity treatment. Focus on cardiovascular health markers rather than assuming low T alone dictates lifespan.

GoodSupportsHIGH confidence
Low free testosterone predicts mortality from CVD but is not associated with death from other causes.
Zoë Hyde et al. · The Journal of Clinical Endocrinology & Metabolism · 2011

Why this rating

Large population-based cohort (n=3637), long follow-up (mean 5.1 years), and use of competing-risks models reduce bias, though it remains observational.

Source

Low Free Testosterone Predicts Mortality from Cardiovascular Disease But Not Other Causes: The Health in Men Study

Zoë Hyde et al. · The Journal of Clinical Endocrinology & Metabolism · 2011

DOI 10.1210/jc.2011-1617

cohort · n=3637Cited 174×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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