# How Parasites Hijack the Brain

Page: https://stenobird.com/podcast/kurzgesagt-podcast-science-revealed-7256567/how-parasites-hijack-the-brain
Text version: https://stenobird.com/podcast/kurzgesagt-podcast-science-revealed-7256567/how-parasites-hijack-the-brain.md
Podcast: [Kurzgesagt Podcast: Science Revealed](https://stenobird.com/podcast/kurzgesagt-podcast-science-revealed-7256567)
Published: 2026-03-22T18:44:31+00:00
Episode link: https://www.spreaker.com/episode/how-parasites-hijack-the-brain--70815482
Audio file: https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/70815482/radio_show_how_parasites_hijack_the_brain.mp3
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JSON: https://stenobird.com/v1/public/podcasts/kurzgesagt-podcast-science-revealed-7256567/episodes/how-parasites-hijack-the-brain
Duration seconds: 2582

## Resource

What if your thoughts… weren’t entirely your own? In this episode, we uncover the disturbing world of microscopic parasites that can hijack the brains and behavior of much larger, more complex animals. From fungi that control insects to parasites that alter fear, movement, and decision-making, these tiny organisms can turn living creatures into unwitting hosts — or even “puppets.” At the center of it all is Toxoplasma gondii , a parasite known to influence the behavior of rodents — and possibly even humans. How do these organisms take control of a host’s brain? Why would evolution favor such bizarre strategies? And could something similar be affecting us without us even realizing it? Blending biology, neuroscience, and real-world case studies, we explore how parasites manipulate life from the inside out — challenging what we think we know about free will, control, and survival. Because sometimes… the most dangerous invaders aren’t the ones you can see. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . This episode includes AI-generated content.

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## Transcript

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