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Why Do You Stick Out Your Tongue When You Concentrate?

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Published on Apr 21, 2018

Have you ever done something that required a ton of concentration, like threading a needle, and noticed that sometimes your tongue pokes out involuntarily? It turns out this reflex could be a leftover from the evolution of human language!

Hosted by: Olivia Gordon

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Sources:
http://www.devcogneuro.com/Publicatio...
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://www.ncbi.nlm.nih.gov/pubmed/4...
https://pdfs.semanticscholar.org/7e36...
https://www.researchgate.net/publicat...

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