From the tip of the tongue to the base of your mouth, the average tongue varies from 7.9 cm (3.1 in) to 8.5 cm (3.3 in) long. So if your tongue were twice as long, it would measure over 17 cm (7 in). While some people might create a novelty act out of this muscle, no one outside the animal kingdom has ever experienced the burden of a tongue this long. How would you speak? What would happen to your sense of taste? And could you ever sleep again?

Transcript and sources: https://whatifshow.com/what-if-your-tongue-were-twice-as-long/

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