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Bryan Johnson
American entrepreneur and venture capitalist, Don't Die

“This Sauna Protocol Annihilates Toxins” - Bryan Johnson

📅 Jan 27, 2026 Chris Williamson 10 MIN 28987 VIEWS 37 SEGMENTS · 2 SPEAKERS
Chris and Bryan Johnson discuss the sauna protocol that Bryan uses every day in his quest to not die. Get 35% off your first subscription on the best supplements from Momentous at https://livemomentous.com/modernwisdom - Get access to every episode 10 hours before YouTube by subscribing for free on Spotify - https://spoti.fi/2LSimPn or Apple Podcasts - https://apple.co/2MNqIgw Get my free Reading List of 100 life-changing books here - https://chriswillx.com/books/ Try my productivity energy drink Neutonic here - https://neutonic.com/modernwisdom - Get in touch in the comments below or...

Questions asked in this interview

5
  1. 2:02So because the microplastics test is actually kind of hard to do, right?
  2. 2:10Just hold this is fascinating, but you know why kitchen detergents say kills 99.999% of bacteria?
  3. 4:32Is that just straight vascular changes?
  4. 5:01Does what did you go for as a solution for ice pack on the balls?
  5. 7:36I've done that for anything else on sauna. Anything else?
Interviewer 0:00 ↗
Tell me about your sauna experiments.
Bryan Johnson 0:02 ↗
Yeah, I was watching those unfold with intrigue. So, we really discovered quite a few things that I shouldn't say discover. We found out quite a few things. So, one is for those who are new to sauna, dry sauna has the most evidence because you're trying to get your core body temperature up and so infrared does not get hot enough and wet sauna will basically burn you at the temperatures you need. So dry sauna is the right traditional dry sauna. Yep. 20 minutes a day at 200 degrees Fahrenheit. 93 Celsius. Sorry. 200 Fahrenheit. So three things we found.
One is I was in LA during the LA wildfires when like 20... Yeah. So I was measuring my toxins in my body before the fires happened and then after the fires happened and I was absolutely baked in toxins. So, I was in like the 99th percentile, as I'm sure other people in LA were too, of toxins. You could like go down the list be like, 'This chemical is used in PVC pipe for housing. This chemical is like a countertop. This chemical is like you literally see the burned houses breathing in teflon and whatever else.' You could like down the list you could look at the industrial solvent. There's a Sarrento. Yes, exactly. So my body was full of all these houses and cars that were burnt and the sauna annihilated the toxins. It was remarkable. So that was cool.
Two is we have been trying to get my microplastics down because microplastics live in the body in the brain. And we were measuring microplastics in my blood and also my semen. And so microplastics hang out in the testicles and that has all sorts of negative effects on testosterone, on fertility. You just don't want them hanging out there. So I had over a 90% reduction in my blood and my semen of microplastics and that was a first in world demonstration of no one had ever done that before.
Interviewer 2:02 ↗
So because the microplastics test is actually kind of hard to do, right?
Bryan Johnson 2:05 ↗
Exactly. The test is hard and no one had done semen before. No one had paired blood and semen.
Interviewer 2:10 ↗
Yeah. Yeah. Just hold this is fascinating, but you know why kitchen detergents say kills 99.999% of bacteria?
Bryan Johnson 2:20 ↗
Why?
Interviewer 2:21 ↗
It's not because they're unable to kill more bacteria. So the testing tolerance only goes... Yeah. Yeah. Exactly. Then this kind of feels like two dissimilar.
Bryan Johnson 2:30 ↗
So one is we showed that sauna is a really efficacious detox protocol. Number two is we showed well if we think sauna was the reason why my microplastics went down so dramatically. Um we relatively controlled across everything else.
Interviewer 2:47 ↗
Exactly. It was very controlled like we didn't do any therapies in that time frame that were meaningful.
Bryan Johnson 2:53 ↗
And then three is I had really great changes improvements in my vascular markers. So it actually improved even though I'm in really good health it still had a measurable increase in my vascular markers. It increased my VEGF. This is like you want VEGF in your body because it helps produce more capillaries and blood vessels like you want a higher level. It increased it by 400% which was amazing. I had a dramatic drop of p-tau which is a protein in the brain that leads to Alzheimer's. So if that drops dramatically... we also I did a test on looking at when you're in that kind of environment, you want to put ice packs on your testicles because otherwise it'll annihilate your fertility markers. They'll take down your count, your morphology, all the above. And even men who say like, 'I don't care. I'm not trying to have a baby.' There's really negative feedback loops. So, if you have smashed fertility markers, then it has negative effects on your health overall. So, I did 3 weeks with ice and then I went 2 weeks without ice. In that two week window, I got smashed. So, my fertility markers went down by 50%.
Interviewer 3:57 ↗
The prices that you pay to uncover this stuff for the rest of us mortals.
Bryan Johnson 4:01 ↗
Yeah. Oh, I went back on ice and I've been back on ice for 6 weeks now and I got these results on my drive here.
Interviewer 4:08 ↗
Okay, cool. Tell us.
Bryan Johnson 4:08 ↗
Yeah. So, I'm going to go by memory. Yeah. So, it's the highest sperm count I've had ever, right? It's the highest motility count I've ever had. It's the highest morphology I've ever had. So, like they bounce. Not only did they bounce back, it's the highest I've ever been. And if you look at these are like off the chart numbers, like six to 10 times the level of like normal fertility. So,
Interviewer 4:32 ↗
What do you think's going on there? Is that just straight vascular changes?
Bryan Johnson 4:35 ↗
We're not sure. I need... What do you think's going on? Come on. Ballpark the mechanism for me. Yeah. I mean, I really need to deep dive into this more. Yeah. I don't know. It's a really big jump. And I've been doing hyperbaric oxygen therapy. We've been doing the sauna. We haven't done really any other meaningful therapy that could boost it.
Interviewer 5:01 ↗
Okay. So, let's go through the protocol for the sauna. You said 200 degrees, dry, 20 minutes, dry, the traditional sauna, ice pack on the balls. Yeah. Does time of day matter? Okay. Does what did you go for as a solution for ice pack on the balls?

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APA, MLA, BibTeX
APA

Johnson, B. (2026, January 27). “This Sauna Protocol Annihilates Toxins” - Bryan Johnson [Interview transcript]. Chris Williamson. CEOInterviews.AI. https://ceointerviews.ai/interview/668193/

MLA

Bryan Johnson. "“This Sauna Protocol Annihilates Toxins” - Bryan Johnson." Chris Williamson, 27 Jan. 2026. Transcript, CEOInterviews.AI, https://ceointerviews.ai/interview/668193/.

BibTeX
@misc{johnson2026_668193,
  author       = {Bryan Johnson},
  title        = {“This Sauna Protocol Annihilates Toxins” - Bryan Johnson},
  howpublished = {Interview transcript, Chris Williamson. CEOInterviews.AI},
  year         = {2026},
  month        = {jan},
  url          = {https://ceointerviews.ai/interview/668193/},
  note         = {Speaker-attributed transcript with timestamps}
}