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  • Why Do We Yawn?

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    What makes yawning so contagious?
    Watch the ‘Yawn-O-Meter’: http://bit.ly/1qwFDrx
    SUBSCRIBE: http://bit.ly/10kWnZ7

    Instagram and Twitter: @whalewatchmeplz and @mitchellmoffit
    Clickable: http://bit.ly/16F1jeC and http://bit.ly/15J7ube

    Facebook: http://on.fb.me/1fjWszw
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    Vine: Search “AsapSCIENCE” on vine!

    Written and created by Mitchell Moffit (twitter @mitchellmoffit) and Gregory Brown (twitter @whalewatchmeplz).

    Further Reading –

    Yawning as a Brain Cooling Mechanism:

    http://www.albany.edu/news/pdf_files/Yawning_Report_Gallup_May_2007.pdf

    Chimpanzees and contagious yawning:

    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3534187/

    Familiarity-connected or stress-based contagious yawning in domestic dogs:

    http://www.ncbi.nlm.nih.gov/pubmed/23982621

    Contagious yawning, social cognition, and arousal: an investigation of the processes underlying shelter dogs’ responses to human yawns:

    http://www.ncbi.nlm.nih.gov/pubmed/23670215

    The thermoregulatory theory of yawning:

    http://www.ncbi.nlm.nih.gov/pubmed/23293583

    Male yawning is more contagious than female yawning among chimpanzees:

    http://www.ncbi.nlm.nih.gov/pubmed/22808234

    Mirror neuron activity during contagious yawning–an fMRI study:

    http://www.ncbi.nlm.nih.gov/pubmed/22772979

    Thermoregulatory theory of yawning:

    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3534187/

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