Vagal Toning: How Stimulating Your Vagus Nerve Can Reduce Anxiety and Boost Wellbeing

Most conversations about anxiety focus on the mind. We talk about thoughts, beliefs, and cognitive patterns. We learn to challenge catastrophic predictions, reframe negative interpretations, and practise mindfulness. All of this is valuable. But there is a parallel story running beneath conscious awareness, told not in words but in the language of the autonomic nervous system — and at the centre of that story is a single, wandering nerve that connects your brain to almost every major organ in your body.

The vagus nerve — from the Latin vagus, meaning "wandering" — is the longest of the twelve cranial nerves. It begins in the brainstem and travels downward through the neck, chest, and abdomen, branching into the heart, lungs, stomach, intestines, and other organs along the way. It is the primary channel through which the brain and the body communicate about safety, danger, and recovery. And increasingly, researchers are discovering that the health and responsiveness of this nerve — what scientists call vagal tone — may be one of the most important biological markers of emotional resilience and wellbeing.^[1]

What Is Vagal Tone and Why Does It Matter?

Vagal tone refers to the activity and efficiency of the vagus nerve, particularly the branch known as the ventral vagal complex. It is most commonly measured through a metric called heart rate variability (HRV) — the subtle, beat-to-beat variation in the time intervals between heartbeats. A healthy heart does not beat like a metronome. Instead, it speeds up slightly when you inhale and slows down when you exhale, a rhythm known as respiratory sinus arrhythmia. This variation is largely driven by vagal input to the heart, and higher HRV generally indicates stronger vagal tone.^[2]

Why does this matter for anxiety and emotional wellbeing? Because vagal tone is not merely a passive indicator of health. It appears to actively shape how well a person can regulate their emotional responses, recover from stress, and engage socially with others. People with higher resting vagal tone tend to show greater emotional flexibility, more effective stress recovery, and a broader capacity for positive social engagement. Those with lower vagal tone are more likely to experience prolonged stress responses, difficulty calming down after emotional arousal, and greater vulnerability to anxiety and depression.^[3]

Vagal tone is not just a measure of how your heart beats. It is a window into how well your nervous system can shift between states of alertness and calm — and that capacity is at the heart of emotional resilience.

Polyvagal Theory: A Map of Your Nervous System

The framework that has done the most to bring the vagus nerve into mainstream therapeutic conversation is polyvagal theory, developed by neuroscientist Stephen Porges. First introduced in 1994, polyvagal theory proposes that the autonomic nervous system operates through three hierarchical circuits, each associated with a different behavioural state.^[4]

According to polyvagal theory, these circuits are recruited in a specific order. When the nervous system detects safety, the ventral vagal circuit is dominant, allowing calm engagement. When a threat is detected, the system shifts to sympathetic activation — the familiar fight-or-flight response. And when the threat is overwhelming or inescapable, the dorsal vagal circuit takes over, producing shutdown and conservation of energy.^[4]

For people who experience chronic anxiety, the system often becomes biased toward the sympathetic or dorsal vagal states. The ventral vagal brake — the mechanism that should restore calm after a stressor has passed — may not engage quickly or strongly enough. The result is a nervous system that remains on high alert long after the actual danger has gone, or one that collapses into numbness and withdrawal.

It is important to note that polyvagal theory has attracted both significant clinical enthusiasm and scientific debate. Some researchers have questioned aspects of the evolutionary phylogenetic claims and the specificity of the neural circuits described.^[5] Nevertheless, the core insight — that vagal function plays a meaningful role in emotional regulation and that it can be influenced by behavioural practices — is well supported by converging evidence from multiple research traditions.

The Evidence: Can You Actually Improve Vagal Tone?

One of the most encouraging aspects of vagal tone research is the growing evidence that it is not fixed. Unlike many biological markers, vagal tone appears to be responsive to behavioural intervention. Several lines of research support this.

A landmark study by Bethany Kok and colleagues, published in Psychological Science, demonstrated that a loving-kindness meditation practice over several weeks led to increases in positive emotions, which in turn predicted increases in vagal tone as measured by HRV. Crucially, the relationship was reciprocal: higher vagal tone at baseline also predicted greater gains in positive emotion over time, suggesting an upward spiral between vagal function and emotional wellbeing.^[3]

Slow-paced breathing, particularly at a rate of approximately six breaths per minute, has been shown to maximise respiratory sinus arrhythmia and acutely increase HRV. A systematic review and meta-analysis published in Psychophysiology confirmed that slow breathing interventions produce reliable increases in HRV, with effects observed both during the practice and, in some studies, at rest after sustained practice.^[6]

Cold exposure, including cold water face immersion, activates the diving reflex — a vagally mediated response that slows heart rate and redirects blood flow. While the long-term effects of regular cold exposure on resting vagal tone are still being studied, the acute vagal activation is well documented and forms the basis of several therapeutic protocols.^[7]

The vagus nerve is not a fixed feature of your biology. It is more like a muscle: the more you engage it through deliberate practice, the stronger and more responsive it becomes.

Six Practical Vagal Toning Exercises

Before beginning any of these exercises, it is helpful to start from a baseline of relaxation. If you use a systematic relaxation practice, completing that first will allow these vagal toning techniques to work more effectively. The following exercises are grounded in the physiological mechanisms described above and can be practised daily.

1. Extended Exhale Breathing

The simplest and most well-supported vagal toning exercise is slow breathing with a longer exhale than inhale. The exhale phase activates the parasympathetic nervous system via the vagus nerve, slowing the heart rate and promoting calm. Try breathing in for four counts and out for six to eight counts. Aim for approximately five to six complete breath cycles per minute. Even five minutes of this practice can produce measurable shifts in HRV.^[6]

2. Humming, Chanting, and Vocal Vibration

The vagus nerve passes through the muscles of the throat and larynx, and vocalisation that produces vibration in these areas appears to stimulate vagal activity. Humming, chanting "om," gargling vigorously with water, or even singing all create mechanical vibration along the vagal pathway. A study published in the International Journal of Yoga found that chanting "om" was associated with limbic deactivation patterns similar to those seen in vagus nerve stimulation, suggesting a shared neural mechanism.^[8]

You do not need to follow any particular tradition. Simply humming a tune for two to three minutes, feeling the vibration in your throat and chest, is a practical daily exercise. Some people find that gargling with cold water for thirty seconds each morning provides a similar effect.

3. Cold Water Exposure

Brief exposure to cold water activates the mammalian diving reflex, a powerful vagal response. The simplest approach is to splash cold water on your face, particularly around the eyes and temples, or to hold a cold, damp cloth against your face for thirty seconds. More adventurous practitioners may try ending a shower with thirty to sixty seconds of cold water, or immersing the face in a bowl of cold water while holding the breath briefly.^[7]

The key is that the cold stimulus needs to reach the trigeminal nerve territory around the face, which then triggers the vagal diving reflex. Simply holding ice cubes in your hands, while invigorating, does not activate the same pathway as effectively.

4. Gentle Neck and Ear Massage

A branch of the vagus nerve — the auricular branch — surfaces in the outer ear, particularly in the tragus and the concha (the inner bowl of the ear). Gentle massage of these areas, as well as the sides of the neck where the vagus runs, may provide mild vagal stimulation. While the evidence for self-massage is more preliminary than for breathing or cold exposure, transcutaneous auricular vagus nerve stimulation (taVNS) using small electrical devices applied to the ear has shown promising results in clinical studies on depression and anxiety.^[9]

For a simple daily practice, gently massage the outer rim and inner bowl of each ear for one to two minutes, using slow circular motions. Follow this with gentle strokes down each side of the neck. Many people report an immediate sense of settling and calm.

5. Social Connection and Co-Regulation

Polyvagal theory emphasises that the ventral vagal system is fundamentally a social engagement system. It evolved not only to calm the body but to facilitate connection with others. The muscles of the face, the middle ear, and the larynx are all innervated by the ventral vagal complex, and they work together to enable the prosody of speech, facial expression, and attentive listening that make safe social interaction possible.^[4]

This means that genuine, warm social interaction is itself a form of vagal toning. Spending time with people who feel safe, engaging in unhurried conversation, making eye contact, laughing together — these are not merely pleasant experiences. They are physiological exercises that strengthen the neural circuits of calm and connection.

6. Guided Relaxation and Hypnotherapy

Deep relaxation states, such as those achieved through guided hypnotherapy, progressive muscle relaxation, or yoga nidra, are associated with significant increases in parasympathetic activity and HRV. During a well-guided hypnotherapy session, the combination of slow breathing, focused attention, soothing vocal prosody, and progressive physical relaxation creates ideal conditions for vagal engagement.^[10]

The therapist's calm, rhythmic voice itself acts as a co-regulatory cue — the nervous system of the listener entrains to the safety signals embedded in the tone, pace, and melody of the guidance. This is one reason why recorded hypnotherapy sessions can be so effective for people who struggle to relax on their own: the external cues of safety help the ventral vagal system come online even when the person's own internal state is dysregulated.

How Vagal Toning Connects to Hypnotherapy and NLP

If you have experienced a hypnotherapy session, you have almost certainly experienced vagal toning without knowing it. The induction phase of most hypnotherapy sessions — the progressive relaxation, the slow breathing guidance, the invitation to let the body soften and settle — is, from a physiological perspective, a systematic activation of the ventral vagal circuit.

When a hypnotherapist guides you to relax your jaw, soften your shoulders, slow your breathing, and allow your eyelids to become heavy, each of these instructions engages a different aspect of vagal function. The jaw and throat relaxation reduces tension in vagally innervated muscles. The slow breathing directly increases HRV. The progressive softening of the body sends afferent signals up the vagus nerve to the brainstem, communicating that the body is safe and that the threat response can stand down.

NLP techniques complement this process by working with the representational systems of the mind. When you visualise a safe, calm place in vivid sensory detail, or when you mentally rehearse a challenging situation while maintaining a state of deep relaxation, you are training the nervous system to associate those contexts with ventral vagal activation rather than sympathetic arousal. Over time, this can shift the default response pattern — so that situations which once triggered anxiety begin to evoke a calmer, more measured response.

Every effective hypnotherapy session is, at its core, a vagal toning session. The relaxation is not merely a prelude to the "real work" — it is the foundation upon which all lasting change is built.

Signs Your Vagal Tone May Be Low

While a clinical assessment of vagal tone requires HRV measurement, there are everyday indicators that may suggest your vagal function could benefit from attention. These are not diagnostic criteria, but patterns worth noticing.

• Difficulty calming down after stress. You remain agitated, tense, or emotionally reactive long after a stressful event has passed.
• Chronic digestive issues. The vagus nerve regulates gut motility and digestive enzyme secretion. Low vagal tone is associated with conditions such as irritable bowel syndrome.
• Shallow, rapid breathing at rest. A tendency to breathe quickly and shallowly, even when not physically active, may indicate sympathetic dominance.
• Difficulty feeling safe in social situations. If your nervous system struggles to detect safety cues, social interaction may feel draining or threatening rather than nourishing.
• Poor sleep quality. The transition into sleep requires a shift from sympathetic to parasympathetic dominance. Low vagal tone can make this transition difficult.
• Feeling emotionally "flat" or disconnected. This may indicate dorsal vagal dominance — a shutdown state rather than a state of engaged calm.

Building a Daily Vagal Toning Routine

The most effective approach to vagal toning is consistency rather than intensity. A brief daily practice is likely to produce better results than an occasional marathon session. Here is a simple routine that takes approximately ten to fifteen minutes and incorporates several of the mechanisms described above.

Morning (5 minutes)

Begin with two minutes of extended exhale breathing (inhale for four counts, exhale for seven or eight counts). Follow with one minute of humming — choose any note or tune and feel the vibration in your throat and chest. Finish with a thirty-second cold water splash on the face or a brief cold rinse at the end of your shower.

Midday (3 minutes)

Take a brief pause from work or activity. Gently massage both ears for one minute, paying attention to the inner bowl and the tragus. Follow with two minutes of slow, diaphragmatic breathing, allowing the belly to expand on the inhale and soften on the exhale. If possible, do this while looking out of a window at a natural scene — visual cues of open space and nature support ventral vagal activation.

Evening (5–10 minutes)

Use a guided relaxation or hypnotherapy recording. Allow the guidance to lead you through progressive relaxation, slow breathing, and visualisation. This is the ideal time for a deeper practice, as the parasympathetic activation will support the transition into restful sleep. The Life Transformationist app offers a range of sessions specifically designed to activate deep relaxation and calm the nervous system.

When Vagal Toning Is Not Enough

Vagal toning exercises are self-help tools with a reasonable evidence base, and many people find them genuinely helpful for managing everyday stress and anxiety. However, they are not a substitute for professional support when it is needed.

If you are experiencing persistent or worsening anxiety, panic attacks, symptoms of post-traumatic stress, chronic depression, or any condition that significantly affects your daily functioning, please seek guidance from a qualified healthcare professional. A GP, psychologist, or accredited therapist can assess your situation and recommend an appropriate treatment plan. Vagal toning practices can often complement professional treatment, but they should not replace it.

It is also worth noting that for some people, particularly those with a history of trauma, certain exercises — especially cold exposure or practices that draw strong attention to internal body sensations — may initially feel activating rather than calming. If any exercise increases your distress, stop, ground yourself in your immediate surroundings, and consider working with a trauma-informed therapist who can guide you through these practices safely.

The Quiet Power of the Wandering Nerve

There is something deeply reassuring about the vagus nerve. In a culture that often treats anxiety as a purely mental problem — something to be thought through, argued with, or overridden by willpower — the vagus nerve reminds us that calm is also a physical state, mediated by a physical pathway, and accessible through physical practices.

You do not need to believe anything in particular for vagal toning to work. You do not need to change your thoughts or rewrite your beliefs. You simply need to breathe a little more slowly, hum a little more often, splash cold water on your face, and spend time with people who make you feel safe. The nerve does the rest, carrying signals of safety from body to brain, gradually recalibrating a system that may have been stuck in alarm mode for longer than it needed to be.

That is not the whole story of healing, of course. Thoughts matter. Beliefs matter. The meaning we make of our experiences matters enormously. But the vagus nerve offers a way in that does not require you to start with the hardest part. It lets you begin with the body, and it lets the body begin to teach the mind that safety is not just an idea — it is a felt, physical reality that can be cultivated, strengthened, and returned to, one slow breath at a time.

Sources and Further Reading

1. Breit S, Kupferberg A, Rogler G, Hasler G. "Vagus Nerve as Modulator of the Brain-Gut Axis in Psychiatric and Inflammatory Disorders." Frontiers in Psychiatry, 2018.
2. Laborde S, Mosley E, Thayer JF. "Heart Rate Variability and Cardiac Vagal Tone in Psychophysiological Research." Frontiers in Psychology, 2017.
3. Kok BE, Coffey KA, Cohn MA, et al. "How Positive Emotions Build Physical Health: Perceived Positive Social Connections Account for the Upward Spiral Between Positive Emotions and Vagal Tone." Psychological Science, 2013.
4. Porges SW. "The Polyvagal Perspective." Biological Psychology, 2007.
5. Grossman P, Taylor EW. "Toward understanding respiratory sinus arrhythmia: Relations to cardiac vagal tone, evolution and biobehavioral functions." Biological Psychology, 2007.
6. Laborde S, Allen MS, Borber U, et al. "Effects of voluntary slow breathing on heart rate and heart rate variability: A systematic review and meta-analysis." Psychophysiology, 2022.
7. Mäkinen TM, Mäntysaari M, Pääkkönen T, et al. "Autonomic Nervous Function During Whole-Body Cold Exposure Before and After Cold Acclimation." Aviation, Space, and Environmental Medicine, 2008.
8. Kalyani BG, Venkatasubramanian G, Arasappa R, et al. "Neurohemodynamic correlates of 'OM' chanting: A pilot functional magnetic resonance imaging study." International Journal of Yoga, 2011.
9. Farmer AD, Strzelczyk A, Finisguerra A, et al. "International Consensus Based Review and Recommendations for Minimum Reporting Standards in Research on Transcutaneous Vagus Nerve Stimulation." Frontiers in Human Neuroscience, 2021.
10. Palsson OS, Turner MJ, Johnson DA, et al. "Hypnosis Treatment for Severe Irritable Bowel Syndrome: Investigation of Mechanism and Effects on Symptoms." Digestive Diseases and Sciences, 2002.