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The Vagus Nerve and How to Calm Your Nervous System
Updated July 2026
The vagus nerve is the longest of the cranial nerves, running from your brainstem down through your chest and abdomen. It’s the main highway of your parasympathetic “rest and digest” system — in other words, your body’s built-in calming switch.
Simple ways to stimulate it
- Long, slow exhales. Making the out-breath longer than the in-breath is one of the most direct ways to raise vagal tone.
- Humming, singing, or chanting. The vibration stimulates the vagus nerve through the throat.
- Cold on the face. Splashing cold water on your cheeks and eyes triggers a reflex that slows the heart.
- Slow, paced breathing such as box breathing or the physiological sigh.
Why it works
When the vagus nerve is active, it slows your heart rate and eases the fight-or-flight response. Higher “vagal tone” — often measured through heart-rate variability — is linked with better stress resilience and emotion regulation. The good news is you can nudge it in a calmer direction within a minute or two using the simple actions above.
When to use it
Any of these help in a stressful moment. Practised regularly, slow breathing and humming can also help lift your everyday baseline sense of calm.
Lilt guides you through small calming exercises like this one, timed and gentle — and grows a garden as you go.
Open Lilt →A gentle note
Lilt shares small, general wellbeing ideas drawn from published research. It isn’t medical or psychological advice, diagnosis, or treatment, and it isn’t a substitute for care from a qualified professional. If something here doesn’t feel right for you, skip it, and talk to your doctor about anything that affects your health.
If you’re struggling, feeling unsafe, or thinking about harming yourself, please reach out for support right away. In the US you can call or text 988 (Suicide & Crisis Lifeline); elsewhere, contact a local doctor or crisis line, or find one at findahelpline.com.