Interesting stuff. I remember reading about this tongue posture idea (keeping the tongue pressed against the roof of the mouth), but nearly all the discussions

Interesting stuff. I remember reading about this tongue posture idea (keeping the tongue pressed against the roof of the mouth), but nearly all the discussions I found about it online were on incel and bodybuilding forums (supposedly maintaining this tongue posture increases the "sharpness" of the jaw and is more attractive), so I wrote it off as silliness. This article seems to be making the case that there were on to something.