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Low Testosterone

Studies on low testosterone, what drives it, when it is real versus a measurement artifact, and what lifts it naturally.

85Studies

85Human studies

2026Most recent

13Countries

A population-level decline in serum testosterone levels in American men.

The Journal of clinical endocrinology and metabolism2007n = 1374 at baseline, decreasing to 489 by final follow-up

CohortHuman

This study set out to measure whether testosterone in American men had fallen over calendar time, separately from the fall that comes with getting older. It drew 2769 measurements from…

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