
13/07/2025
Do you need to be worried about your dog's "vagus nerve"?
I'm asked this often, and most of you have probably seen the sponsored posts selling a course on treating the vagus nerve for things like fear and reactivity. The vagus nerve is a large nerve that runs the "rest and digest" system, which is the opposite of fight or flight, so I get why people are curious. But do you actually need to worry about it?
The vagus nerve in dogs connects the brain to the body. It controls automatic things like breathing, digestion, and heart rate. When a dog eats, rests, or calms down after stress, the vagus nerve helps the body return to a relaxed state. It also plays a role in managing inflammation and keeping the nervous system in balance.
In some emergency situations, vets may stimulate a dog’s vagus nerve in a controlled medical setting. But this is not something pet owners should be doing at home.
The vagus nerve controls serious things. Messing with it can cause a dog to faint, vomit, or have breathing problems. It’s not a simple calming trick. If your dog is anxious or reactive, there are much safer and more effective ways to help them. Vets do not use vagus nerve stimulation for normal anxiety or daily stress. It is a medical procedure, not a routine tool.
If your dog struggles with fear or reactivity, there are safe, proven ways to help. You don’t need gimmicks or risky hacks. You can change how your dog feels about things using counter-conditioning. You can expose them gradually using desensitization. You can add routines so they know what to expect, use calming enrichment like sniffing games or food puzzles, teach simple safety cues like a u-turn, and work with a trainer who understands stress and fear. If needed, your vet might also recommend medication to lower anxiety so your dog can feel better and learn more easily.
The good news is, if you're thinking about the vagus nerve, you're trying to help your dog. In a time when everything is a "hack," it's easy to get pulled toward shortcuts that sound science-y. But there are better, easier, and safer ways to support your dog.
Talk to your vet before trying any medical procedure!