Methodology

Testosterone, Age and Training, What's Real

Francesco Zen, founder of ZTraining · Last updated June 19, 2026

Why age alone doesn't explain it

I've coached men in their eighties with relevant testosterone levels, and men in their twenties dealing with low testosterone. Lifestyle, mental stress, activity levels, nutrition, genetics, and family history all play a real role. The honest picture only comes from actual measurement, not from assuming a number based on age.

What training can genuinely do

Hypertrophic exercise does support testosterone and growth hormone levels. That's real. What's equally real is that training alone doesn't always prevail against a genuine biological deficiency, and pretending otherwise oversells what exercise can deliver.

Where this becomes a medical conversation

Where supplementation is genuinely needed, it's something that works well for overall health when it's actually warranted, supporting physical health, libido, mental health, sleep, and general wellbeing. That said, this is medical territory, not coaching territory, and any decision here belongs with a doctor working from real bloodwork, not a generalised article.

Francesco Zen is the founder of ZTraining and ZLIFE, with 18 years of coaching experience working with executives across the UK, US, and UAE. He built Mr Z, an AI coach trained on his methodology to bring the same approach to a wider audience.

This page is general coaching information, not medical advice. Hormone-related decisions should be made with a doctor based on your own bloodwork.

Testosterone, Age and Training, What's Real

Why age alone doesn't explain it

What training can genuinely do

Where this becomes a medical conversation

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