Vagus Nerve Exercises
The vagus nerve is a long nerve running from the brainstem down through the throat, heart and gut. It plays a big part in the body's 'rest and digest' system — the side of the nervous system that helps us slow down after stress. You can't switch it on like a light, but some simple everyday activities seem to help nudge the body towards settling.
What the evidence says — honestly
Slow breathing with a longer out-breath is the best-studied way to influence this calming system; research links it to a slower heart rate and changes in heart-rate variability. Other ideas, such as humming or cool water on the face, have a sensible basis but less research behind them. Online claims that you can 'reset' or 'hack' your vagus nerve go well beyond the evidence.
So treat these as gentle tools to try, not cures. Notice what actually helps you.
Exercises to try
- Long exhale breathing: breathe in for a count of about four, and out for about six. A few minutes is plenty.
- Humming or singing: a low hum on the out-breath naturally lengthens it, and many people find the vibration soothing.
- Cool water: splash cool (not icy) water on your face, or hold something cool against your cheeks for a few seconds.
- Gentle movement: slow neck rolls, a stretch or a short walk can help release built-up stress energy.
- Connection: a calm voice, a friendly face or time with a pet can help the body feel safe enough to settle.
A trauma-sensitive approach
If focusing on your breath or body feels uncomfortable, that's okay — it's common after trauma. Keep your eyes open, choose an outward focus such as sounds or colours, and stop whenever you need to. You stay in charge.
Avoid very cold water if you have a heart condition, and check with your GP if you're unsure. Breathing practices shouldn't make you dizzy — if they do, return to normal breathing.
Related techniques
This article is for information only and isn't a substitute for professional support. If you need help now, see our UK support resources.