Back to Renaissance Periodization

The Testosterone Decline Story Is Dead

Renaissance PeriodizationAugust 12, 202622m
In a Nutshell

Testosterone levels in U.S. men, which had been declining for decades, have now reversed and risen since 2011 even as obesity increased. Population data cannot explain why or diagnose individuals, but the strongest evidence-based levers are consistent high-quality sleep, substantial fat loss if obese, adequate nutrition without extreme restriction, and smart training recovery. Men with persistently low levels plus symptoms should pursue proper morning testing and consider TRT under medical supervision rather than relying on supplements or abstinence rituals.

AI-Generated Notes

These notes were generated by AI and may contain inaccuracies.

The honest answer is that we don't actually know why testosterone levels stopped declining and started going back up because obesity rose from roughly 35% to 39% moving exactly the wrong direction to explain higher testosterone. Population level analyses give very little clarity to your specific situation. How do you maximize your own natural testosterone levels? Don't worry about sex and jerking off. If you're doing all that and your test levels are still low, you might want to consider TRT, but the question is how and when.

We've heard for years that our testosterone levels are falling. Recent research says they're rising. The popular story is that modern men have dramatically less testosterone than their fathers or grandfathers did. Depending on the podcast microphone involved, testosterone has supposedly fallen by somewhere between 30 and 50% or approximately one entire real adult Viking per generation.

The headline of test levels are falling did grow from several legitimate secular trend findings rather than from pure internet vapor. There have been also declines in testosterone that could be attributed to other factors that can be corrected for in these analyses. For example, aging. Testosterone tends to decline as an individual man ages. But a secular decline adjusts for that. That means a 40-year-old tested in 2005 has less testosterone than a comparable 40-year-old tested in 1990. Age adjustment attempts to separate the population got older from same-age men now have lower levels, which is a very different claim.

Sign in to read the full notes

Get access to AI-generated notes, topic timestamps, and more.