BONUS: How To Reverse Testosterone Decline After 40 (Biohacking Tips)
Dave Asprey
Sep 14, 2025
Episode description
Most men think declining testosterone is just “part of aging”, but that’s a lie Big Pharma sold you. In this video, I break down exactly how I raised my testosterone in my 50s without injections, drugs, or TRT. These are the same biohacks I used to turn my energy, drive, and strength around, naturally. I’ll walk you through how your diet, your sleep, and even the light in your bedroom could be sabotaging your hormones. Want results? Start here.
Chapters:
0:00 – Introduction
1:40 – The Lie About Aging and Testosterone
2:49 – What’s Desatroying Your Testosterone Daily
3:42 – How Your Cells Actually Make Testosterone
4:58 – Why Diet is Step One (and What to Eat)
7:08 – The Most Underrated T Booster
8:38 – The Truth About Light and Hormones
14:40 – How to Fix It
Get Your Oral Testosterone Here: http://www.LiveThrive.co/asprey
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Mindsip insights from this episode:
Challenge myth of lifelong testosterone replacement therapy
It is a myth that you must be on testosterone replacement therapy for life once you start, as you can still improve your natural production.
Switch to oral testosterone undecanoate for convenient treatment
A new oral form of testosterone called testosterone undecanoate (brand name Kyzatrex) is a game-changing alternative to injections.
Go to bed before 10 PM to boost testosterone production
Testosterone production ramps up during your early night sleep cycles, so going to bed late will savage your levels.
Prioritize sleep to maintain testosterone levels
Just one night of poor sleep can drop your testosterone levels by as much as 15%.
Monitor morning erections to assess testosterone health
Your morning erection is a direct and free signal from your endocrine system that your testosterone is functioning properly.
Recognize cholesterol as essential for testosterone production
Contrary to mainstream media, cholesterol is the literal building block for your most important male hormone, testosterone.
Eliminate hormone disruptors to protect testosterone levels
Everyday items like plastic containers, tap water, and scented detergents contain hormone disruptors that are slowly lowering your testosterone.
Get morning sunlight to boost testosterone levels
Getting 5-10 minutes of natural sunlight in your eyes within 30 minutes of waking triggers a hormonal cascade that starts building testosterone.
Use TrueDark glasses after sunset to protect testosterone
To protect testosterone, use TrueDark glasses after sunset, as standard blue-blocking glasses are not enough to filter all disruptive light.
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