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What Is a Hypnic Jerk?
If you’re sleepy, today’s Wonder of the Day will definitely help you wake up!
What Is a Hypnic Jerk?
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How Do We Move?
Join us in Wonderopolis today for one of the most moving Wonders of the Day ever!
How Do We Move?
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How Do Reflexes Work?
Today’s Wonder of the Day just happened without us even thinking about it!
How Do Reflexes Work?
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Why Do You Blush?
My, what pink cheeks you have! Find out what has Wonderopolis blushing in today’s Wonder of the Day.
Why Do You Blush?
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Why Do Your Muscles Cramp?
Today’s Wonder of the Day can be a real pain in the leg!
Why Do Your Muscles Cramp?
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Why Do You Yawn?
Today's Wonder of the Day won’t put you to sleep, but it may make you yawn!
Why Do You Yawn?
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