Adding to our knowledge about the connection between sleep and mental health, researchers from the University of Rochester and N.Y.U. find that sleep creates the conditions for a greater exchange of cerebrospinal fluid with interstitial fluid in the brain, which in turn promotes increased removal of potentially neurotoxic waste products that accumulate during brain activity while awake.
Xie, L., Kang, H., Xu, Q., Chen, M., et al; Sleep Drives Metabolite Clearance from the Adult Brain. Science. 18 October 2013: 342(6156) 373-377. DOI: 10.1126/science.1241224