The Dirty Truth About Your UNDERWEAR, Cooking Oil & Chair? Microplastics, Hormones, Seed Oils, HRV & More: Best Of Roots Of Health
Boundless Life
Ben Greenfield
4.6 • 5.3K Ratings
🗓️ 16 May 2026
⏱️ 75 minutes
🧾️ Download transcript
Summary
Full Show Notes: https://bengreenfieldlife.com/rootsofhealth
In this special "Best Of" episode, you'll explore some of my most impactful conversations on what actually builds long-term roots of health. If you're dealing with low energy, hormonal issues, chronic inflammation, or just a nagging sense that something's off despite doing all the right things, this episode gives you a clear roadmap.
You'll hear from Daniel Baird on why the synthetic fabric in your underwear may be quietly disrupting your hormones and why microplastics are becoming one of the biggest threats to male reproductive health, while Katy Bowman makes the case that your chair and mattress are doing more damage than you think. Justin Roethlingshoefer shares how a near-death diagnosis at 32 completely rewired his approach to health data and recovery. Dr. Cate Shanahan breaks down how the oils in your kitchen are being incorporated into your cell membranes. Julie Gibson Clark shows how she rebuilt her health from scratch in her 40s. And James Pieratt closes with a deep dive into what Spartan warriors actually trained like, and why it still holds up as one of the most complete blueprints for human performance ever devised.
Whether you listen start to finish or jump to the section that speaks to you most, you'll find something in here that changes the way you think about your health.
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Transcript
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| 0:00.0 | My name is Ben Greenfield and on this episode of the Boundless Life podcast. All right. So if you've |
| 0:06.5 | been doing everything right and you still feel like something could be missing, this episode |
| 0:12.3 | could give you the reason why. A lot of people think healing and optimization is about finding |
| 0:17.0 | the right protocol, you know, the right supplement stack or the right diet or the right |
| 0:21.6 | biohack, but the real leverage could be in the layers underneath all of that. The invisible |
| 0:28.5 | stuff like what's literally touching your body right now on your clothes, how your home is built, |
| 0:33.5 | what your cells are made of, the habits that you're subconsciously running on autopilot |
| 0:38.4 | every single day. So this episode is about base layers. And I mean that both literally and metaphorical. |
| 0:47.5 | I've got Daniel Baird on talking about why the fabric in your undies might be silently disrupting |
| 0:53.6 | your hormones and what microplastics |
| 0:55.5 | are doing to reproductive health from the outside in. I've got Katie Bowman on talking about |
| 1:01.6 | why sleeping on the floor could do more for your joints and posture than any mattress or |
| 1:07.9 | recovery tool that you might be trying. I don't sleep on the floor, but I definitely |
| 1:12.3 | have adopted a different mattress after talking with her. I've got Justin Rothland Schaffer on |
| 1:19.1 | to talk about how a near-death diagnosis of 32 years old rewired his entire approach to health |
| 1:25.1 | and why tracking HRV is the habit foundation a lot of |
| 1:29.1 | high performers don't interpret right. I've got Dr. Kate Shanahan to talk about how oils in your |
| 1:34.3 | kitchen are literally building your cell membranes and why one French fry, according to her, |
| 1:39.6 | carries the oxidative load of an entire cigarette. I've got Julie Gibson Clark talking about how she |
| 1:45.1 | rebuilt her health from scratch. In her 40s using practical stackable habits, anyone can actually |
| 1:50.6 | sustain. I've got James Pirat. This is a fun one on what Spartan warriors actually train like |
| 1:56.2 | and why their approach to physical prep still holds up as a blueprint for human performance. |
... |
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