Low Testosterone & Low Mood - Feeling flat, foggy or off? It could be your testosterone - and your environment

Written by Saara Jamieson

You’ve tried sleeping more, eating better, pushing through - but something still feels off. What if the missing link isn’t in your head... but in your biology?

 

1. Introduction: You’re Not Lazy, You’re Likely Low

Let’s just say it: the men I speak to aren’t lacking motivation - they’re running on fumes. Good men, healthy men, men doing 'everything right,' who still feel like they’ve lost their edge.

They’re not depressed. But they’re not fully themselves either.
And too often, the real cause gets missed: low testosterone.

This isn’t a conversation about masculinity. It’s a conversation about biology - and how the way we live today is working against it.

2. Testosterone Is Changing - Because the World Is

Our grandfathers didn’t sit 8 - 10 hours a day. They didn’t grow up surrounded by endocrine - disrupting chemicals, artificial lights, constant stress, or hyper - processed food. And they sure weren’t wearing tight polyester underwear while working from a laptop on their lap.

We are now raising a generation of men whose hormonal baseline is radically different from what human biology is built for.

Studies show that average testosterone levels have declined by more than 20% in the last two decades. That’s not genetics. That’s environment. That’s lifestyle. That’s modern life putting men’s health under slow, consistent pressure.

3. Why Testosterone Matters (and Not Just for Sex)

When people hear “testosterone,” they think muscles or libido. But here’s what it also controls:

• Mood stability
• Mental clarity
• Energy and motivation
• Bone density and heart health
• Sperm production

So when testosterone drops, it doesn’t just affect sex drive. It affects everything.

4. The Role of Heat: A Quiet Hormone Disruptor

Your testicles are external for a reason. They need to be cooler than the rest of your body - 3 to 5°C cooler, in fact - to keep sperm and testosterone production running optimally.

But here’s the thing:
Just 20 minutes of sitting - on a car seat, in an office chair, on the couch - can push that temperature too high.

And if you add in tight underwear, spolyester, and poor airflow, your testes are essentially sitting in a slow cooker. That repeated heat exposure isn’t just bad for sperm - it inhibits Leydig cell function, the very cells responsible for making testosterone.

5. Why This Isn’t Your Fault

We’ve never been taught to think about scrotal temperature. We’ve never questioned if underwear could affect our hormones. And society still puts the burden of fertility and hormone regulation largely on women - while men are left out of the conversation entirely.

That ends here.

This isn’t about blame. It’s about biology. And reclaiming a sense of ownership over it.

6. So What Can You Do?

This isn’t a 'take a magic pill' solution. Testosterone responds best to consistent lifestyle shifts that support your body’s natural hormone production.

Start here:

• Cool down
  Choose breathable, anatomical underwear that keeps the testes away from the body and promotes airflow. Take breaks from long stretches of sitting - especially in cars or on office chairs. And steer clear of polyester fabrics that trap heat and moisture.
  
• Lift smart
  Resistance training naturally boosts testosterone. But recovery, sleep, and cooling down matter just as much.
• Fuel right
  Healthy fats, zinc, magnesium, and vitamin D all play a role in hormone production.
• Sleep like it matters
  Testosterone is produced during deep sleep. Short, broken sleep disrupts the entire system.
• Minimise modern stress
  Not all stress is psychological. Blue light, poor food quality, sitting too long, even noise - these all add up and affect your endocrine system.

7. How Cool Beans Can Help

Cool Beans was designed to address one of the most overlooked - but correctable factors in hormonal health: heat. Our external pouch keeps the testes positioned forward and away from the body, allowing proper airflow, temperature regulation, and natural support.

It’s underwear, yes - but it’s also hormone-conscious design.

It won’t solve everything on its own. But iAn excerpt is a short extract from a text.t’s the easiest place to start. No injections. No guesswork. Just biology, optimised.

8. Final Thoughts: This Is a Wake-Up Call

You’re not broken. You’re not failing. You’re living in a world that hasn’t been built with your biology in mind. But now that you know, you get to take back control.

Testosterone isn’t just about virility. It’s about vitality. And that’s worth protecting.

Hear from Andrew Jobling - best-selling author, speaker, and former professional athlete – as he shares why Cool Beans isn’t just underwear, it’s a men’s health revolution.

This isn’t sponsored. It’s personal. Because when men feel better, they show up better - for themselves, their partners, and their future.

FAQs

Q: Why are testosterone levels dropping so fast?
A: Poor sleep, processed diets, chronic stress, heat exposure, and sedentary lifestyles are disrupting hormone production across generations.

Q: How does underwear affect testosterone?
A: Elevated scrotal heat from tight or synthetic underwear impairs the cells that produce testosterone and sperm.

Q: Can switching underwear really help?
A: It’s a simple fix that removes a daily stressor on your hormone system. Pair it with other changes for best results.

References

1. Durairajanayagam, D., et al. (2015). Impact of hyperthermia on male fertility. Reproductive Biology and Endocrinology, 13, 39.
2. Koskelo, A., et al. (2005). Increase of scrotal temperature in men while sitting. International Journal of Andrology, 28(6), 360–364.
3. Zorgniotti, A. W., & MacLeod, J. (1982). Temperature and male fertility. International Journal of Fertility, 27(2), 94–96.
4. Shafik, A. (1992). Effect of polyester on sperm production. European Urology, 21(3), 270–275.
5. Travison, T. G., et al. (2007). The population-level decline in serum testosterone in American men. Journal of Clinical Endocrinology & Metabolism, 92(1), 196–202.

You don’t need to overhaul your life to feel better. But you do need to start with the right foundation.
Explore Cool Beans - science-backed, comfort-driven, and designed for the way your biology was built to function.
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