I saw someone post online about licking and chewing and how it’s not actually the good, “thought processing” sign that people typically say it is… So i googled it and turns out they were right!!
“This cluster of licking, chewing, and sometimes swallowing that you have asked about occurs right when switching back to parasympathetic after a period of sympathetic. That’s because when sympathetic control switches on, salivation ceases and the mouth and lips quickly dry. When the disturbance resolves and relaxation returns, salivation also returns. So the licking and chewing is just that simple reflexive response to deal with the salivation resuming after a period of dry mouth and lips. So, in a sense, licking and chewing do reflect relaxation, but specifically as a result of returning from a spell of acute stress or pain. People often refer to this moment as “relief.” Another medical term for it is sympathetic attenuation.”
…"These sympathetic attenuation responses are not a submission gesture per se, but they can occur within the context of an interaction where an animal shows submission. In a threatening situation, the submissive animal might lick and chew after its submissive posture or behavior successfully leads to the threatening animal backing off. "
my horse licks and chews a TONNNN both under saddle and just in her general daily life… I always kind of thought of it as mostly a good sign that she’s learning but now I know that it’s a lil more complicated than that!! I have been trying to start doing a lot more positive reinforcement with her so this is definitely good to know.