High school students launch blood samples into near space, a real life love story involves a faecal microbiota transplant (FMT), and scientists find cocaine in sharks off The Bahamas. Today we bounce between space medicine, the gut microbiome and mental health, and the uncomfortable reality of ocean pollution.

We break down what those student rocket experiments could mean for space exploration and future medical procedures, then dive into the emerging science of gut bacteria, antibiotics, and how the microbiome may influence conditions like bipolar disorder. It is fascinating, hopeful, and also a bit gross, which is basically the scientific sweet spot.

Then we hit the ocean for the headline nobody asked for: sharks on cocaine. It is not just a meme, it is a sign of how far human contaminants travel through marine ecosystems, and why environmental science keeps finding our mess in places we thought were pristine.

We also unpack why we yawn, including research on brain temperature regulation and whether yawning patterns act like a physiological fingerprint.

CHAPTERS:

00:00 Introduction

01:08 Chivalry Frog Meet Cute

03:37 Bipolar Confession Backstory

05:21 Gut Brain Link Evidence

06:50 DIY FMT Love Story

08:27 FMT Risks And Hype

11:10 Defensive Rewilding Idea

16:40 Cocaine Sharks Explained

17:52 Bahamas Study Findings

22:40 Pollution Everywhere

23:30 Why We Yawn

26:00 Contagious Yawns

27:22 Yawns in the MRI

28:37 Yawning Fingerprints

30:21 Brain Goo Hypothesis

32:06 Student Science Journal

38:12 Blood to Space

39:39 Four-Dimensional Minds

SOURCES:

• https://www.abc.net.au/news/2025-07-28/faecal-microbiota-transplant-credited-with-curing-bipolar/105541522
• https://futurism.com/science-energy/sharks-high-levels-of-cocaine
• https://www.sciencedirect.com/science/article/abs/pii/S0048969724049477
• https://www.sciencedirect.com/science/article/abs/pii/S0269749126001880
• https://emerginginvestigators.org/
• https://www.tandfonline.com/doi/full/10.1080/03071847.2026.2646067#d1e362
• https://www.sciencedirect.com/science/article/pii/S1569904826000340?via=ihub

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