has anyone actually done this? https://m.primal.net/Pqss.jpg
A popular hypothesis for how the brain clears molecular waste, which may help explain why #sleep feels refreshing, is a subject of debate.
https://www.quantamagazine.org/the-mysterious-flow-of-fluid-in-the-brain-20250326/
https://www.quantamagazine.org/the-mysterious-flow-of-fluid-in-the-brain-20250326/