[bityard]

Yes.

And to further qualify the conclusion, the research was done in mice so it's premature to say whether or not human brains operate identically. (Mammalian anatomy between species is often similar, but just as often is found to be different in unexpected ways.)

[adsteel_]

I'd like to learn more about the washing. Do you have a link or word/phrase to Google?

[FuriouslyAdrift]

The glymphatic system

https://en.wikipedia.org/wiki/Glymphatic_system