Found that the tongue is wide and curved, what symptom is stupidity?

This should be caused by talking less and not paying attention to exercise. You see, both the host and the announcer have flexible tongues, right? That's all from practice. It's not just professional practice. Practice your tongue often after work.

Besides, saying stupid things has little to do with the generosity of the tongue. I will send you a photo of the Lickitung World Record holder. Their tongues and pens are much bigger than the average person. But it has no effect on speech.