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Belly Button Challenge: Can you reach around your back and touch your naval? | World | News | Express.co.uk
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Chinese students wrap their arms around their waist and touch their belly- buttons to attempt a "Belly-button challenge" at a school in Luoyang city, c Stock Photo - Alamy
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Rare belly button phobia makes medical student VOMIT and could destroy her doctor dream - Mirror Online
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Belly Button Challenge: Can you reach around your back and touch your naval? | World | News | Express.co.uk
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