In the fourth Mysterious You book, Zzz ?, kids uncover the secrets of sleep to find out how the body clock works, why the brain needs sleep, what happens during REM (Rapid Eye Movement) sleep and more. This unique book explores the mysteries of the human body using a mix of thoroughly researched factual information, amazing anecdotes and surprising try-it activities. Did you know? * If a person lives to be 70, they'll have spent 23 years sleeping. * Wolfgang Amadeus Mozart was inspired by music he heard in his dreams. * Gorillas who've learned sign language have been known to sign in their sleep!
- ISBN10 061387157X
- ISBN13 9780613871570
- Publish Date 1 March 2002
- Publish Status Out of Print
- Out of Print 6 April 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Pages 40
- Language English