RE: Why Is Yawning So Contagious? — Hive

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RE: Why Is Yawning So Contagious?

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mehdikh19 (5)in #science • 7 years ago

the lack of oxygen .thanks for nice information

7 years ago in #science by mehdikh19 (5)

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sauravrungta (77) 7 years ago

Thanks for reading :)

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mehdikh19 (5) 7 years ago

thanks for sharing my brother .wish the best for you and your family

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