NeuroscienceHow Sleep Protects the BrainBy Dwayne Godwin, Jorge Cham on May 1, 2014Advertisement This article was originally published with the title "Sleepy Heads" in SA Mind 25, 3, 76 (May 2014)doi:10.1038/scientificamericanmind0514-76ABOUT THE AUTHOR(S)Dwayne Godwin is a neuroscientist at the Wake Forest University School of Medicine.Recent Articles by Dwayne GodwinSingin' in the BrainCoping with the Winter BluesFinding Her NerveJorge Cham draws the comic strip Piled Higher and Deeper at www.phdcomics.com. He is also co-author of the new book We Have No Idea: A Guide to the Unknown Universe, published by Riverhead Books.Recent Articles by Jorge ChamWe Live in a Pre-Truth UniverseSingin' in the BrainCoping with the Winter Blues