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2) How I sleep
Author
Series
Language
English
Description
"Your body goes through a cycle of five different stages when you sleep. The fifth stage is known as Rapid Eye Movement (REM) sleep. Learn about the fascinating ways the human body functions in How I Sleep, a My Body title. Each title in the series introduces readers to the ways in which their body senses things, grows, and interacts with the world around them"--Back cover.