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Appearances Over Time

Podcast Appearances

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

And interesting, the largest group of people in tubs in Northern California who did the study were environmental lawyers. Is your job that stressful? I said, yeah, it is. I mean, it probably is in California. All right.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

And interesting, the largest group of people in tubs in Northern California who did the study were environmental lawyers. Is your job that stressful? I said, yeah, it is. I mean, it probably is in California. All right.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

So the only study ever done prior to that was a PhD thesis at Vassar College where someone had a guy dip their testicles into a bucket for 20 minutes at really hot and looked at their sperm counts or their fertility. And they went, that was the only, and I couldn't even find it, it wasn't published. You had to figure out this thesis thing. But that's how little was written about it.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

So the only study ever done prior to that was a PhD thesis at Vassar College where someone had a guy dip their testicles into a bucket for 20 minutes at really hot and looked at their sperm counts or their fertility. And they went, that was the only, and I couldn't even find it, it wasn't published. You had to figure out this thesis thing. But that's how little was written about it.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

And they gave me so much flack for publishing this. It was really funny. And the New York Times had an article said, drew a condom and it drew birth control pills and it drew a guy in a tub. It's like, pick your contraceptive. So it's huge. I'd say 10% of my population's in it. And then the next question is, what about saunas? So saunas is not underwater. It's not submersion.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

And they gave me so much flack for publishing this. It was really funny. And the New York Times had an article said, drew a condom and it drew birth control pills and it drew a guy in a tub. It's like, pick your contraceptive. So it's huge. I'd say 10% of my population's in it. And then the next question is, what about saunas? So saunas is not underwater. It's not submersion.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

But saunas are, you're in a hot room. It's going to affect it. And I would say the effect is one quarter to one third as profound as a hot bath or submersion.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

But saunas are, you're in a hot room. It's going to affect it. And I would say the effect is one quarter to one third as profound as a hot bath or submersion.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

Yeah. And then I would say steam rooms, showers are probably fine. Urine and ambient temperature is normal. And I think steam rooms are probably between saunas and depends how much time you spend, but it's probably not normal, but not a hot bath. Hot baths are terrible. Okay. And then what about the cold? I don't worry about cold.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

Yeah. And then I would say steam rooms, showers are probably fine. Urine and ambient temperature is normal. And I think steam rooms are probably between saunas and depends how much time you spend, but it's probably not normal, but not a hot bath. Hot baths are terrible. Okay. And then what about the cold? I don't worry about cold.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

I remember Surfer Magazine called me and said, I'm a Northern California surfer, right? Not an LA surfer. The editor of Surfer Magazine called me and said, are surfers infertile? I said, is that water bad for them? Because California water is 60 degrees. I said, no, I've never met an infertile surfer. So I don't think it's bad at all. All right. So the cold is okay.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

I remember Surfer Magazine called me and said, I'm a Northern California surfer, right? Not an LA surfer. The editor of Surfer Magazine called me and said, are surfers infertile? I said, is that water bad for them? Because California water is 60 degrees. I said, no, I've never met an infertile surfer. So I don't think it's bad at all. All right. So the cold is okay.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

Especially plunge where you're talking seconds. Yeah, yeah. You know, your testicles are going to go up and you're going to be able to maintain that heat. I think if you did it All the time, it would probably be bad, yeah. Because enzymes work in the testicle at that one temperature.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

Especially plunge where you're talking seconds. Yeah, yeah. You know, your testicles are going to go up and you're going to be able to maintain that heat. I think if you did it All the time, it would probably be bad, yeah. Because enzymes work in the testicle at that one temperature.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

I have old vintage bikes that I used to race in Connecticut and I had them rehabbed and they're all Italian and they're all steel and they weigh a ton. And the seats are from Britain and they've got 10,000 miles on them and they weigh four pounds as much as like- It's just like a Brooks saddle, these Brooks leather saddles.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

I have old vintage bikes that I used to race in Connecticut and I had them rehabbed and they're all Italian and they're all steel and they weigh a ton. And the seats are from Britain and they've got 10,000 miles on them and they weigh four pounds as much as like- It's just like a Brooks saddle, these Brooks leather saddles.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

And you know, all worked out and it's like, That saddle nowadays is about half the weight of a carbon bike. But I love it. And I was thinking of maybe going senior league and doing this gorgeous steel frames and trying to keep up with those guys. Because it's not about the bike, really. It's like when you get golf clubs. And I got $150 set of golf clubs.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

And you know, all worked out and it's like, That saddle nowadays is about half the weight of a carbon bike. But I love it. And I was thinking of maybe going senior league and doing this gorgeous steel frames and trying to keep up with those guys. Because it's not about the bike, really. It's like when you get golf clubs. And I got $150 set of golf clubs.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

I'm going to be as bad a golfer with $1,000 club as 100. So it's really about the biker. But there are some differences, you know, in terms of momentum and the wheel force and all that. But I love my old steel bikes. And they see this. It's like I hang at my office when I come to work in the morning and I bike in San Francisco. And I have the seat. It's like, that's a bad saddle.

The Peter Attia Drive
#351 ‒ Male fertility: optimizing reproductive health, diagnosing and treating infertility, and navigating testosterone replacement therapy | Paul Turek, M.D.

I'm going to be as bad a golfer with $1,000 club as 100. So it's really about the biker. But there are some differences, you know, in terms of momentum and the wheel force and all that. But I love my old steel bikes. And they see this. It's like I hang at my office when I come to work in the morning and I bike in San Francisco. And I have the seat. It's like, that's a bad saddle.