Download or read book The Secret World of Sleep written by Penelope A. Lewis and published by Macmillan. This book was released on 2013-08-27 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuroscientist Penny Lewis explores the latest research into the nighttime brain to understand the real benefits of sleep, showing how, while our body rests, the brain practices tasks it learned during the day, replays traumatic events to mollify them, and forges connections between distant concepts.