Literally speaking? [Yes.][0] > "In a series of new studies on mice, her team discovered exactly that: When the mouse brain is sleeping or under anesthesia, it

Literally speaking? [Yes.][0] > "In a series of new studies on mice, her team discovered exactly that: When the mouse brain is sleeping or under anesthesia, it’s busy cleaning out the waste that accumulated while it was awake." The NIH [also wrote about this in optimistic tones][1], if you're not a fan of mainstream science reporting. [0]: http://www.nytimes.com/2014/01/12/opinion/sunday/goodnight-sleep-clean.html?_r=0 http://www.nytimes.com/2014/01/12/opinion/sunday/goodnight-s... [1]: http://www.nih.gov/researchmatters/october2013/10282013clear.htm http://www.nih.gov/researchmatters/october2013/10282013clear...