What happens if you don't sleep well? Which parts of your body never sleep? How many hours of sleep does your body need? Find the answers to these questions and much, much more in this picture-packed introduction to the human body. An ideal first introduction to biology and health, Why do I sleep? explores the human body and the importance of sleep with fun experiments and activities.
This is Book 29 in the Science in Action Series. See all Science in Action books here.
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Angela Royston has written many books for young people, including books about people at work, animals, health and the environment.
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