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Why are yawns contagious? We asked a scientist - YouTube

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***YAWN***search?q=***YAWN***search?sca_esv=9f7259ab7855135b Why is yawning contagious from www.youtube.com
Duration: 3:12
Posted: Jul 17, 2018

Why Is Yawning Contagious? - YouTube

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***YAWN***search?q=***YAWN***search?sca_esv=9f7259ab7855135b Why is yawning contagious from m.youtube.com
Duration: 5:45
Posted: May 12, 2012

Why is yawning contagious? | WTFAQ | ABC TV + iview - YouTube

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***YAWN***search?q=***YAWN***search?sca_esv=9f7259ab7855135b Why is yawning contagious from www.youtube.com
Duration: 4:53
Posted: Nov 20, 2023

The Yawn-O-Meter (How Long Can You Last?) - YouTube

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***YAWN***search?q=***YAWN***search?sca_esv=9f7259ab7855135b Why is yawning contagious from www.youtube.com
Duration: 3:48
Posted: Mar 12, 2014

Science finally explains contagious yawning - YouTube

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***YAWN***search?q=***YAWN***search?sca_esv=9f7259ab7855135b Why is yawning contagious from m.youtube.com
Duration: 0:45
Posted: Jun 14, 2019

Viva La Dirt League - Contagious yawn spreading at work - YouTube

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***YAWN***search?q=***YAWN***search?sca_esv=9f7259ab7855135b Why is yawning contagious from www.youtube.com
Duration: 3:23
Posted: Oct 30, 2023

Contagious Yawning - YouTube

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***YAWN***search?q=***YAWN***search?sca_esv=9f7259ab7855135b Why is yawning contagious from m.youtube.com
Duration: 2:37
Posted: Jul 23, 2018

Can You Watch This Without Yawning? - YouTube

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***YAWN***search?q=***YAWN***search?sca_esv=9f7259ab7855135b Why is yawning contagious from www.youtube.com
Duration: 0:56
Posted: May 2, 2016

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