Nerve Health · Late Summer Reset
Meet the busiest nerve you have probably never thought about: the vagus nerve. It runs from your brainstem down to your heart, lungs, and gut, and it is the main line of your body's rest-and-digest system, the setting where steady digestion, an even heartbeat, and a sense of calm all live. How well that signal travels depends on healthy nerve cells and the minerals that keep them firing cleanly, which is where your day-to-day nutrition quietly does its work at the cellular level to support healthy nerve function.*
The vagus nerve is the main component of the parasympathetic nervous system. Researchers note that vagal tone, a measure of how active that calming signal is, is correlated with the body's capacity to regulate its stress response and can be influenced by everyday practices such as slow breathing and meditation.1
What Your Vagus Nerve Does
The vagus nerve is the longest of your twelve cranial nerves, and it works quietly in the background whether you are wide awake or fast asleep. It is your body's main channel for the parasympathetic, or "rest and digest," response. Here is where its steady work shows up most.
It helps steady your heart rhythm
Through a built-in feedback system called the baroreceptor reflex, the vagus nerve helps your body keep a steady, appropriate heart rate. When you are at rest, it signals the heart to ease off; when you get moving, it steps back so your heart can rise to meet the demand. That constant fine-tuning is part of a healthy, responsive nervous system.
It runs your rest-and-digest response
The moment you start eating, the vagus nerve signals your digestive system to get to work, supporting the normal release of stomach acid and enzymes and the gentle muscle contractions that keep everything moving in the right direction. Good vagal activity is a big part of comfortable, regular digestion.
It supports a calm, settled feeling
When the vagus nerve is active, it helps flip your body out of "go" mode and into calm. It supports the release of acetylcholine, a messenger tied to the relaxed, parasympathetic state, which is why practices that engage the vagus nerve tend to leave you feeling more grounded and at ease.
What Healthy Vagal Tone Looks Like
"Vagal tone" is simply how readily your vagus nerve can shift you into the calm, recovery state. When your vagal tone is well supported, everyday life tends to feel a little smoother:
- Easy transitions: you move from a busy, stimulating moment back to calm without staying wound up.
- Comfortable digestion: meals sit well and your system keeps things moving.
- Steady recovery: your heart rate settles nicely after exertion or excitement.
- Restful evenings: your body downshifts when it is time to wind down.
How to Stimulate Your Vagus Nerve: 5 Everyday Ways
The good news is that vagal tone responds to simple, repeatable habits. Here is how to stimulate the vagus nerve naturally, with five practices worth building into a late-summer reset.
1. Feed your nerves magnesium
Magnesium is a cofactor in more than 600 reactions, including the nerve and muscle signaling behind a healthy nervous system, with a physiological role that is especially important in the brain, heart, and muscles.2 It helps regulate the flow of calcium in and out of nerve cells, which keeps their electrical signals firing cleanly. RnA ReSet® delivers it as ReMag®, a picometer-ionic liquid magnesium built for cellular absorption, and ReMyte® adds the broader mineral team while ReAline® supplies the methylated B vitamins healthy nerves depend on.*
2. Practice slow, deep breathing
Slow breathing is one of the most direct ways to engage the vagus nerve. A systematic review of slow-breathing techniques found they shift the body toward parasympathetic activity, raising heart rate variability and promoting comfort, relaxation, and alertness.3 Try ten slow breaths from your belly, with the exhale longer than the inhale.
3. Hum, sing, or gargle
The vagus nerve connects to your vocal cords and the muscles at the back of your throat, so humming, singing, chanting, and even gargling gently engage it. It is a low-effort way to give your vagal tone a nudge, and you do not have to carry a tune to benefit.
4. Try a splash of cold
A brief cool splash of water on the face, or the tail end of your shower run cold, is a simple cue that engages the vagus nerve and invites your body toward its calm, recovery setting.
5. Tend your gut
The vagus nerve is a two-way street between your gut and brain, so a diverse, well-fed microbiome sends steadier signals upward. Fermented foods like yogurt, kefir, and sauerkraut help, and so can a quality probiotic; here is our take on soil-based probiotic strains.
Vagal tone is built one small habit at a time, and it runs on healthy cells. Give your nerves the minerals they need and a few daily cues to downshift, and you are supporting the rest-and-digest system that keeps digestion, heart rhythm, and calm working together.*
- The vagus nerve is the main line of your rest-and-digest system, touching heart rate, digestion, and a calm, settled feeling.
- "Vagal tone" is how readily your body shifts into that calm state, and it responds to simple daily habits.
- Five everyday supports: magnesium, slow breathing, humming or singing, a splash of cold, and a well-tended gut.*
- Healthy nerves run on minerals, so a well-absorbed magnesium gives your vagal tone a cellular foundation.*
References: 1. Breit S, Kupferberg A, Rogler G, Hasler G. Vagus Nerve as Modulator of the Brain-Gut Axis in Psychiatric and Inflammatory Disorders. Front Psychiatry. 2018. doi:10.3389/fpsyt.2018.00044 2. de Baaij JHF, Hoenderop JGJ, Bindels RJM. Magnesium in man: implications for health and disease. Physiol Rev. 2015. doi:10.1152/physrev.00012.2014 3. Zaccaro A, et al. How Breath-Control Can Change Your Life: A Systematic Review on Psycho-Physiological Correlates of Slow Breathing. Front Hum Neurosci. 2018. doi:10.3389/fnhum.2018.00353
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.