Discovery Points to a 'Sewage System' For The Brain Right Behind Our Nose

<img width="128" height="52" src="https://www.sciencealert.com/images/2024/01/NasopharyngealPlexus.jpg" alt=""/>
A secret passageway.

https://www.sciencealert.com/discovery-points-to-a-sewage-system-for-the-brain-right-behind-our-nose