A slip of the tongue
Update: 2023-02-28
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There are plenty of reasons why a person might poke their tongue out.
Sometimes it can be a rude or cute gesture. Maori warriors do it as a sign of defiance, and Tibetans do it as a greeting.
But many times it's a sign of concentration. So here’s why your tongue helps your brain think.
Host: Dr Karl Kruszelnicki
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