On: Brain may flush out toxins during sleep (2015)

[dang]

We briefly changed the URL to https://www.nih.gov/news-events/news-releases/brain-may-flus..., which this article points to, but changed it back because this article contains more background info. We kept the less baity title, though.

[Hydraulix989 → dang]

Yes, the old article was actually already posted here.