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Dr Karl Podcast

Peptide tans, brain charge and seeing in the dark

21 May 2026

Transcription

Chapter 1: What is the main topic discussed in this episode?

0.031 - 21.033 Lucy Smith

This is a Triple J podcast. Hello, welcome to another episode of Science with Dr. Carl in your podcast feed. And I wanted to read you some of the texts that came through this week that made their way into the episode as questions. Now, this is verbatim. I have a genuine pinecone inquiry for Dr. Carl. I love that wording, genuine pinecone inquiry.

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Chapter 2: What questions does Dr. Karl address in this episode?

21.074 - 41.162 Lucy Smith

Naturally, we said we need to find out more about this. Bree in Newcastle, how the hell does a plane just take off the ground? I think we've all wondered that. And Gaynor texted in saying, I would love to know how far do fish see? I have a fish pond inside and I swear they watch me when I'm inside. What is going on with these fish?

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41.483 - 50.714 Lucy Smith

You're going to find out all of this and more in this week's episode. Let's jump in. Dr Karl is across from me right now. Dr Karl, how are you?

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51.094 - 51.815 Dr Karl

I'm so peachy keen.

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52.036 - 54.799 Lucy Smith

Yeah, what's been happening? What's one thing you learnt this week?

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55.04 - 68.097 Dr Karl

Zempic. So that drug came to us from the Giller Monster nearly 50 years ago in 1980. We first started working on it and it took nearly 45 years for it to come to market and we've discovered that it has all sorts of other effects.

68.518 - 70.54 Lucy Smith

So hang on, the Giller Monster. The Giller Monster.

Chapter 3: How does a plane take off from the ground?

70.6 - 75.567 Lucy Smith

So I've heard of a Giller Monster on a King Gizzard and the Lizard Wizard song.

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75.766 - 76.047 Dr Karl

What?

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76.067 - 79.694 Lucy Smith

They have a song called Gilla, Gilla Monster. Wow.

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80.035 - 86.89 Dr Karl

It's a creature that is a short, fat reptile, maybe half a metre long, moves slowly, spends 95% of the time underground. That checks out.

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Chapter 4: How far can fish actually see?

86.91 - 113.245 Dr Karl

Hardly eats any food. Oh. And that ties in with the ability of it to make a chemical in its venom that that can, in humans, ultimately end up leading to treating diabetes and insulin. This little creature is bottom right-hand corner of the USA and just in Mexico on the other side, and it comes out with a chemical called a peptide, which is about 30 or 40 amino acids long.

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113.265 - 130.824 Dr Karl

I've been getting a little bit worried about people cheerfully saying, oh, I'm taking peptides, and so now my boob muscles are terrific and my arm muscles are terrific and I'm look-maxing. And if you're looking even at just... 10 peptides, 10 amino acids in a row. So a peptide is made of amino acids.

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130.844 - 149.547 Dr Karl

And if you're just looking at a short one with only 10 amino acids, the number of different possible combinations are greater than a number of stars in the Milky Way galaxy. Whoa. And the stuff that they're manufacturing is not made to medical standards. And so it can do this and sometimes it can do that and people have died from taking the peptides.

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149.527 - 156.819 Dr Karl

Peptide covers an infinity of sins and so that's our public services announcement for today. Be careful.

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157 - 157.481 Lucy Smith

Okay.

157.501 - 163.03 Dr Karl

Be careful out there, folks. Can we say it in a sort of meaningful way? Do we sound like somebody letting the cops go out on a night shift?

163.811 - 164.573 Lucy Smith

How would you say it?

165.053 - 168.379 Dr Karl

Be careful out there, man. I don't know.

168.578 - 171.721 Lucy Smith

What led you to this discovery? Were you reading something?

Chapter 5: What are peptides and how do they affect the body?

367.685 - 384.229 Dr Karl

And it can happen to an unnecessary degree in some people where if you're just thinking, I've got to catch the bus. Oh, my God, I'm getting nervous in case I'm late. So there's a whole bunch of practical things you can do like the – four, three, two, one thing like the grounding.

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385.05 - 400.05 Dr Karl

Right now I'm worried about the bus but I can, there are five things that I can see and I can feel four things like I can feel my socks and the winds blowing on my face and I can hear the sound of the birds and you ground yourself in the reality and you move yourself away from that.

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400.47 - 407.96 Dr Karl

And then also just actually walking and getting physical helps and then there's all that boring stuff about being healthy and well-rested and sleep, all that sort of stuff.

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407.98 - 409.002 Lucy Smith

Box breathing, all that.

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409.022 - 412.707 Dr Karl

Does that kind of help a bit? Is that what you're interested in? Yeah, that's cool. Thank you.

412.988 - 413.689 Lucy Smith

Thanks, Brock.

413.749 - 414.39 Dr Karl

Thank you, Dr. Brock.

414.55 - 419.136 Lucy Smith

Tyson in Mianjin, Brisbane. Dr. Tyson, you've got a question about viruses.

420.078 - 423.162 Dave Marchese

Yes. Hello, Dr. Gillimonster. Hope you're well.

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