Boing Boing

Boing Boing

Yawning has an unexpected influence on the fluid inside your brain

Ellsworth Toohey
Feb 05, 2026
∙ Paid

yawn DavidTB/shutterstock.com

Turns out your yawn is doing way more than signaling boredom or fatigue – it’s actually reorganizing the flow of fluids in your brain in ways scientists never expected.

Researchers at Neuroscience Research Australia recently placed 22 volunteers in MRI scanners and had them yawn, breathe deeply, and suppress yawns to examine …

User's avatar

Continue reading this post for free, courtesy of Boing Boing.

Or purchase a paid subscription.
© 2026 Happy Mutants LLC · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture