Why Is Yawning Contagious? [Vid]

Now is not the time to yawn! Watch and learn, geeks!

[Source: Vsauce | Via]

3 Responses to Why Is Yawning Contagious? [Vid]

  1. Interesting video, but why the hell have Charlie McDonnell and the other idiot on there? "Celebrity" factor, or merely just to give them more publicity for doing f*ck all?

    • No they are just friends hanging out doing things they like togehter: making youtube videos. As a youtuber you don't have co-workers as if you were employed at a company so you interact with other youtube makers and you become some sort of colleagues and make video collaborations. Cheer up! It's not like the video lose quality.

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