Vagus Nerve Stimulator Amazon

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Best Vagus Nerve Stimulator Amazon


1) Pulsetto - Best Vagus Nerve Stimulator Amazon



Pulsetto Fit: Wellness, Upgraded



Description (Pulsetto Fit):


Key Features of Pulsetto Fit


  • Custom Fit: Comes with two removable magnetic paddings for different neck sizes, ensuring a snug, comfortable fit.

  • New Pulsating Mode: A rhythmic, wave-like stimulation that syncs with your breath for deeper nervous system relaxation.

  • 20% Longer Battery Life: Offers about 1.2 weeks of daily use per charge.

  • Enhanced Durability: Reinforced materials make it built to last through daily wear.

  • Same Great App: Includes the same 5 programs and 30-day Premium trial as Lite, with identical sound library and add-ons.

  • What’s Included: Device, two paddings, 60g gel tube, USB-C cable, user guide.

  • Safety: FCC-certified, same ULRE tech as Lite. Consult a doctor if you have implantable devices.


Shop Pulsetto FIT 



Pulsetto - Your Peace & Better Sleep Partner


The Science Behind Vagus Nerve Stimulation





Pulsetto is a wearable device that uses vagus nerve stimulation (VNS) to promote relaxation and reduce stress and anxiety. By targeting the vagus nerve with gentle electrical impulses, Pulsetto can help induce a state of calm, making it easier to fall asleep and stay asleep.


Advantages of Pulsetto:


  • Stress Reduction: Experience significant relief from daily stress by activating your vagus nerve and shifting your body into a "rest and digest" state.

  • Improved Sleep: Pulsetto supports restful sleep by calming your nervous system, helping you wake up refreshed and energized.

  • Enhanced Mental Clarity: By promoting relaxation, Pulsetto aids in sharpening focus and reducing brain fog.

  • Boosted Heart Rate Variability (HRV): This device helps improve HRV, an important marker of heart health and resilience to stress.

  • Digestive Health Support: Vagus nerve stimulation positively impacts the gut-brain connection, aiding digestion and reducing bloating.

  • Chronic Health Support: Pulsetto offers support for individuals managing chronic stress, anxiety, and fatigue, helping to improve their quality of life.


What's Included:



How Pulsetto Works:


Using Pulsetto is simple and takes just 4 minutes to start feeling the effects. Here's how it works:


  1. Apply a generous amount of gel to your neck or directly onto the electrodes.

  2. Place the device on your neck.

  3. Pair it with the Pulsetto app on your smartphone.

  4. Choose your desired program and start the device through the app.


The device creates a gentle, pleasant vibration or tingling sensation in your neck area. This stimulation helps activate your parasympathetic nervous system, leading to a calmer, less stressed state.

Shop Pulsetto




Rank

Product Name

Description

2

Truvaga Plus

Truvaga Plus is a handheld transcutaneous cervical vagus nerve stimulator (tcVNS) that applies 5,000Hz pulses at 25Hz to the neck for 2-minute sessions. App-connected for tracking and personalization, it's guaranteed for unlimited sessions over 3 years and HSA/FSA eligible. Priced at $499, it includes conductivity spray and focuses on stress relief, focus, and sleep enhancement. Backed by parameters similar to FDA-cleared gammaCore, studies show improvements in mental responsivity and stress-related disorders. Pros: fast noticeable effects, excellent customer support, free shipping, positive for anxiety and headaches. Cons: expensive, not hands-free, Bluetooth dependency, return shipping costs. Testers reported superior calming and sleep quality. Available on Amazon, it's ideal for quick parasympathetic activation without invasiveness, with Trustpilot ratings around 3.2/5 highlighting efficacy after consistent use. 

3

Apollo Neuro Wearable

Apollo Neuro is a vibrotactile wearable device for wrist or ankle, using low-frequency vibrations to indirectly stimulate the vagus nerve. App-integrated with modes for sleep, focus, relaxation, recovery, and more, sessions vary in length and intensity, with music-sync options. Priced at $358, it offers a 1-year warranty and 30-day guarantee, ISO 13485 certified. Studies indicate 23-minute faster sleep onset and 41% anxiety reduction, beneficial for PTSD. Pros: versatile daily use, hands-free, tracks progress, enhances cognition and rest. Cons: mixed connectivity reviews, no direct electrical stimulation, higher cost. Users praise better focus and energy. Available on Amazon with 3.8/5 stars, it's a non-invasive alternative for biohacking without gels, supported by vibration therapy research.

4

Xen by Neuvana

Xen by Neuvana is an auricular tVNS device using earbuds to deliver 25Hz electrical pulses, customizable via app with 210 waveform combinations for mood, sleep, and stress. Priced at $349-$421 (bundle), it's hands-free, music-syncing, with a 1-year warranty and 30-day guarantee, CE certified. Backed by general taVNS research, it underperforms in some head-to-head studies but excels in comfort. Pros: portable, activity-integrated, low ongoing costs with saline conductor. Cons: high-intensity risks like vertigo, poor battery, entanglement, low Trustpilot 2.8/5. Testers found it most comfortable with "good itch" sensation. Available on Amazon indirectly, ideal for on-the-go use, with mixed reviews on effectiveness and setup.

5

Hoolest VeRelief Prime

Hoolest VeRelief Prime is a compact handheld tcVNS device with five modes (8Hz-100Hz) and adjustable intensity, no app required. Priced at $299-$399, it uses monthly replaceable pre-gelled tips, with breathing-integrated modes for stress and anxiety. IRB-approved studies on 150+ participants show benefits for sleep and focus. Pros: portable, easy use, quick calming, 60-day guarantee, 1-year warranty, FDA-compliant. Cons: no certifications, proprietary tips increase costs, Trustpilot 3.2/5 with mixed long-term feedback. Positive for on-the-go relief. Available on Amazon, great for beginners seeking non-app simplicity, though scientific claims sometimes overstated. 

6

Sensate

Sensate is a chest-worn vibration device using infrasonic waves and app soundscapes for 10-30 minute sessions targeting vagus toning. Priced at $299, it lasts a week per charge, with optional $100/year premium sounds, CE/FCC certified, 90-day guarantee, 1-year warranty. Research supports vibration for HRV and sleep improvement. Pros: effortless, travel-friendly, mindfulness integration, high usability. Cons: no device-specific trials, logistical complaints, Trustpilot 4.1/5. Users report stress reduction and better rest. Available on Amazon with 4.1/5 stars from 1,200+ reviews, a gentle non-electrical option for relaxation.

7

Nurosym

Nurosym is an ear-clip taVNS device delivering patented waveform pulses to the tragus, with adjustable programs for anxiety and sleep. Priced at €900 (discounts available), it includes a case, 2-year warranty (6 months earpiece), FDA NSR/CE certified. Clinically tested for HRV and focus. Pros: comfortable, excellent reviews for calmness, strong scientific backing. Cons: high price, no app. Trustpilot 4.4/5 from 900+ reviews praise portability and ease. Available on Amazon indirectly, ideal for targeted auricular stimulation with positive user feedback on sleep and stress. 

8

ZENOWELL Vita Auricular Vagus Nerve Stimulator

ZENOWELL Vita is an ear-plug style taVNS device with modes for sleep, relax, and meditation, targeting the auricular vagus branch for insomnia and anxiety. Priced around $279, it's wearable in bed, non-invasive, drug-free, with noticeable benefits in 1-3 weeks. Patented stimulation improves autonomic balance and energy. Pros: portable, easy use, effective for restlessness, 5/5 user reviews on portability. Cons: limited modes, efficacy varies. Amazon ratings highlight quick results and comfort. Great for sleep-focused biohacking, with YouTube demos showing stress relief. 

9

Amofit S

Amofit S is a wearable electromagnetic cVNS device worn as a necklace, using mild signals to stimulate the cervical vagus for sleep, stress, and memory. Priced at $478, it's discreet, app-free, and non-contact. Research-backed for parasympathetic activation. Pros: helpful for users, improves tranquility, and healing from injuries. Cons: expensive, mixed Reddit feedback, Trustpilot positive but limited. Not directly on Amazon, but eBay/alternatives; users note better sleep and reduced anxiety after use. Ideal for subtle daily wear. 

10

Vagustim

Vagustim is an ear-clip taVNS device with app-controlled bilateral stimulation of the concha, subscription for settings. Priced $400, it's non-invasive, drug-free for pain, stress, sleep. Clinically tested in 40+ studies. Pros: targeted, safe, supports digestion and mood. Cons: subscription model, expensive. Amazon 4+ stars praise relaxation and recovery. Positive for POTS symptoms in reviews.

11

Dolphin Neurostim

Dolphin Neurostim is an electronic acupuncture pen for vagal stimulation, an OTC kit with protocols for trigger points and stress reduction. Priced $200-$300, it relaxes muscles and enhances vagal tone. Pros: powerful pain relief, over-the-counter, and reduces inflammation. Cons: requires manual application and, learning curve. Amazon 4.5/5 from hundreds, great for home therapy and nerve compression relief.

12

gammaCore

gammaCore is a handheld nVNS device for the neck, FDA-cleared for headaches and migraines. Priced prescription-based ~$500+, it uses electrical stimulation to block pain signals. Pros: effective for cluster headaches, CE-marked. Cons: requires a prescription, not for general stress. Available via Amazon search links, positive for acute relief in reviews. 


FAQ:


1. What is a vagus nerve stimulator (VNS)?


A vagus nerve stimulator is a medical or non-invasive device designed to send mild electrical impulses to the vagus nerve, a key pathway connecting the brain to major organs such as the heart, lungs, and digestive tract.

Its purpose is to help regulate the body’s autonomic nervous system, improving balance between the sympathetic (“fight or flight”) and parasympathetic (“rest and digest”) responses.


2. How does vagus nerve stimulation work?


The device delivers small electrical pulses that stimulate the vagus nerve.

These signals travel to the brainstem, influencing areas responsible for mood, inflammation, heart rate, and digestion.

By activating the parasympathetic system, VNS helps the body return to a calm, restorative state, reducing stress and improving physiological balance.


3. What conditions can VNS help with?


Vagus nerve stimulation has been studied and used for:


  • Epilepsy (FDA-approved)

  • Depression resistant to medication (FDA-approved)

  • Anxiety and stress

  • Inflammatory conditions

  • Chronic pain and migraines

  • Tinnitus

  • Sleep disorders

  • Gut and digestion issues
     

Emerging research also explores its role in PTSD, fatigue, and long-COVID recovery.


4. What are the different types of vagus nerve stimulators?


There are two main types:


  • Implantable VNS – a surgical device placed under the skin, connected to the vagus nerve in the neck. Commonly used for epilepsy and depression.

  • Non-invasive VNS (tVNS) – external devices that stimulate the vagus nerve through the ear or neck without surgery. These are wearable, portable, and used for wellness and relaxation.


5. Is vagus nerve stimulation safe?


Yes,  when used correctly and under professional guidance.


Implantable VNS devices are approved for specific conditions and have a long record of safety.

Non-invasive VNS devices are generally low-risk and side effects are minimal, usually limited to mild tingling or temporary skin irritation.


6. What are the possible side effects of VNS?


Side effects vary depending on the device type and settings, but can include:


  • Hoarseness or voice changes

  • Mild coughing or throat discomfort

  • Neck or ear tingling

  • Short-term headaches or dizziness
     

These effects are typically mild and diminish as the body adapts.

7. How long does it take to see results with VNS?


Results depend on the individual and the condition being treated.

For implanted VNS, benefits for epilepsy or depression often appear within weeks to months.

With non-invasive VNS devices, users may feel immediate relaxation or focus benefits, while long-term improvements (e.g., in mood or sleep) usually develop after 2–6 weeks of regular use.


8. Can I use a vagus nerve stimulator at home?


Yes. Most non-invasive VNS devices are designed for safe, at-home use.

They include guided intensity levels and automatic programs for stress relief, focus, recovery, and sleep improvement.
Always follow manufacturer instructions or consult a healthcare provider if you have pre-existing conditions.


9. Who should avoid vagus nerve stimulation?


People with the following conditions should seek medical advice before using VNS:


  • Pacemakers or implanted electrical devices

  • Severe heart rhythm disorders

  • Best Vagus Nerve Stimulator Amazon


    1) Pulsetto - Best Vagus Nerve Stimulator Amazon



    Pulsetto Fit: Wellness, Upgraded



    Description (Pulsetto Fit):


    Key Features of Pulsetto Fit


    • Custom Fit: Comes with two removable magnetic paddings for different neck sizes, ensuring a snug, comfortable fit.

    • New Pulsating Mode: A rhythmic, wave-like stimulation that syncs with your breath for deeper nervous system relaxation.

    • 20% Longer Battery Life: Offers about 1.2 weeks of daily use per charge.

    • Enhanced Durability: Reinforced materials make it built to last through daily wear.

    • Same Great App: Includes the same 5 programs and 30-day Premium trial as Lite, with identical sound library and add-ons.

    • What’s Included: Device, two paddings, 60g gel tube, USB-C cable, user guide.

    • Safety: FCC-certified, same ULRE tech as Lite. Consult a doctor if you have implantable devices.


    Shop Pulsetto FIT 



    Pulsetto - Your Peace & Better Sleep Partner


    The Science Behind Vagus Nerve Stimulation





    Pulsetto is a wearable device that uses vagus nerve stimulation (VNS) to promote relaxation and reduce stress and anxiety. By targeting the vagus nerve with gentle electrical impulses, Pulsetto can help induce a state of calm, making it easier to fall asleep and stay asleep.


    Advantages of Pulsetto:


    • Stress Reduction: Experience significant relief from daily stress by activating your vagus nerve and shifting your body into a "rest and digest" state.

    • Improved Sleep: Pulsetto supports restful sleep by calming your nervous system, helping you wake up refreshed and energized.

    • Enhanced Mental Clarity: By promoting relaxation, Pulsetto aids in sharpening focus and reducing brain fog.

    • Boosted Heart Rate Variability (HRV): This device helps improve HRV, an important marker of heart health and resilience to stress.

    • Digestive Health Support: Vagus nerve stimulation positively impacts the gut-brain connection, aiding digestion and reducing bloating.

    • Chronic Health Support: Pulsetto offers support for individuals managing chronic stress, anxiety, and fatigue, helping to improve their quality of life.


    What's Included:



    How Pulsetto Works:


    Using Pulsetto is simple and takes just 4 minutes to start feeling the effects. Here's how it works:


    1. Apply a generous amount of gel to your neck or directly onto the electrodes.

    2. Place the device on your neck.

    3. Pair it with the Pulsetto app on your smartphone.

    4. Choose your desired program and start the device through the app.


    The device creates a gentle, pleasant vibration or tingling sensation in your neck area. This stimulation helps activate your parasympathetic nervous system, leading to a calmer, less stressed state.

    Shop Pulsetto




    Rank

    Product Name

    Description

    2

    Truvaga Plus

    Truvaga Plus is a handheld transcutaneous cervical vagus nerve stimulator (tcVNS) that applies 5,000Hz pulses at 25Hz to the neck for 2-minute sessions. App-connected for tracking and personalization, it's guaranteed for unlimited sessions over 3 years and HSA/FSA eligible. Priced at $499, it includes conductivity spray and focuses on stress relief, focus, and sleep enhancement. Backed by parameters similar to FDA-cleared gammaCore, studies show improvements in mental responsivity and stress-related disorders. Pros: fast noticeable effects, excellent customer support, free shipping, positive for anxiety and headaches. Cons: expensive, not hands-free, Bluetooth dependency, return shipping costs. Testers reported superior calming and sleep quality. Available on Amazon, it's ideal for quick parasympathetic activation without invasiveness, with Trustpilot ratings around 3.2/5 highlighting efficacy after consistent use. 

    3

    Apollo Neuro Wearable

    Apollo Neuro is a vibrotactile wearable device for wrist or ankle, using low-frequency vibrations to indirectly stimulate the vagus nerve. App-integrated with modes for sleep, focus, relaxation, recovery, and more, sessions vary in length and intensity, with music-sync options. Priced at $358, it offers a 1-year warranty and 30-day guarantee, ISO 13485 certified. Studies indicate 23-minute faster sleep onset and 41% anxiety reduction, beneficial for PTSD. Pros: versatile daily use, hands-free, tracks progress, enhances cognition and rest. Cons: mixed connectivity reviews, no direct electrical stimulation, higher cost. Users praise better focus and energy. Available on Amazon with 3.8/5 stars, it's a non-invasive alternative for biohacking without gels, supported by vibration therapy research.

    4

    Xen by Neuvana

    Xen by Neuvana is an auricular tVNS device using earbuds to deliver 25Hz electrical pulses, customizable via app with 210 waveform combinations for mood, sleep, and stress. Priced at $349-$421 (bundle), it's hands-free, music-syncing, with a 1-year warranty and 30-day guarantee, CE certified. Backed by general taVNS research, it underperforms in some head-to-head studies but excels in comfort. Pros: portable, activity-integrated, low ongoing costs with saline conductor. Cons: high-intensity risks like vertigo, poor battery, entanglement, low Trustpilot 2.8/5. Testers found it most comfortable with "good itch" sensation. Available on Amazon indirectly, ideal for on-the-go use, with mixed reviews on effectiveness and setup.

    5

    Hoolest VeRelief Prime

    Hoolest VeRelief Prime is a compact handheld tcVNS device with five modes (8Hz-100Hz) and adjustable intensity, no app required. Priced at $299-$399, it uses monthly replaceable pre-gelled tips, with breathing-integrated modes for stress and anxiety. IRB-approved studies on 150+ participants show benefits for sleep and focus. Pros: portable, easy use, quick calming, 60-day guarantee, 1-year warranty, FDA-compliant. Cons: no certifications, proprietary tips increase costs, Trustpilot 3.2/5 with mixed long-term feedback. Positive for on-the-go relief. Available on Amazon, great for beginners seeking non-app simplicity, though scientific claims sometimes overstated. 

    6

    Sensate

    Sensate is a chest-worn vibration device using infrasonic waves and app soundscapes for 10-30 minute sessions targeting vagus toning. Priced at $299, it lasts a week per charge, with optional $100/year premium sounds, CE/FCC certified, 90-day guarantee, 1-year warranty. Research supports vibration for HRV and sleep improvement. Pros: effortless, travel-friendly, mindfulness integration, high usability. Cons: no device-specific trials, logistical complaints, Trustpilot 4.1/5. Users report stress reduction and better rest. Available on Amazon with 4.1/5 stars from 1,200+ reviews, a gentle non-electrical option for relaxation.

    7

    Nurosym

    Nurosym is an ear-clip taVNS device delivering patented waveform pulses to the tragus, with adjustable programs for anxiety and sleep. Priced at €900 (discounts available), it includes a case, 2-year warranty (6 months earpiece), FDA NSR/CE certified. Clinically tested for HRV and focus. Pros: comfortable, excellent reviews for calmness, strong scientific backing. Cons: high price, no app. Trustpilot 4.4/5 from 900+ reviews praise portability and ease. Available on Amazon indirectly, ideal for targeted auricular stimulation with positive user feedback on sleep and stress. 

    8

    ZENOWELL Vita Auricular Vagus Nerve Stimulator

    ZENOWELL Vita is an ear-plug style taVNS device with modes for sleep, relax, and meditation, targeting the auricular vagus branch for insomnia and anxiety. Priced around $279, it's wearable in bed, non-invasive, drug-free, with noticeable benefits in 1-3 weeks. Patented stimulation improves autonomic balance and energy. Pros: portable, easy use, effective for restlessness, 5/5 user reviews on portability. Cons: limited modes, efficacy varies. Amazon ratings highlight quick results and comfort. Great for sleep-focused biohacking, with YouTube demos showing stress relief. 

    9

    Amofit S

    Amofit S is a wearable electromagnetic cVNS device worn as a necklace, using mild signals to stimulate the cervical vagus for sleep, stress, and memory. Priced at $478, it's discreet, app-free, and non-contact. Research-backed for parasympathetic activation. Pros: helpful for users, improves tranquility, and healing from injuries. Cons: expensive, mixed Reddit feedback, Trustpilot positive but limited. Not directly on Amazon, but eBay/alternatives; users note better sleep and reduced anxiety after use. Ideal for subtle daily wear. 

    10

    Vagustim

    Vagustim is an ear-clip taVNS device with app-controlled bilateral stimulation of the concha, subscription for settings. Priced $400, it's non-invasive, drug-free for pain, stress, sleep. Clinically tested in 40+ studies. Pros: targeted, safe, supports digestion and mood. Cons: subscription model, expensive. Amazon 4+ stars praise relaxation and recovery. Positive for POTS symptoms in reviews.

    11

    Dolphin Neurostim

    Dolphin Neurostim is an electronic acupuncture pen for vagal stimulation, an OTC kit with protocols for trigger points and stress reduction. Priced $200-$300, it relaxes muscles and enhances vagal tone. Pros: powerful pain relief, over-the-counter, and reduces inflammation. Cons: requires manual application and, learning curve. Amazon 4.5/5 from hundreds, great for home therapy and nerve compression relief.

    12

    gammaCore

    gammaCore is a handheld nVNS device for the neck, FDA-cleared for headaches and migraines. Priced prescription-based ~$500+, it uses electrical stimulation to block pain signals. Pros: effective for cluster headaches, CE-marked. Cons: requires a prescription, not for general stress. Available via Amazon search links, positive for acute relief in reviews. 


    FAQ:


    1. What is a vagus nerve stimulator (VNS)?


    A vagus nerve stimulator is a medical or non-invasive device designed to send mild electrical impulses to the vagus nerve, a key pathway connecting the brain to major organs such as the heart, lungs, and digestive tract.

    Its purpose is to help regulate the body’s autonomic nervous system, improving balance between the sympathetic (“fight or flight”) and parasympathetic (“rest and digest”) responses.


    2. How does vagus nerve stimulation work?


    The device delivers small electrical pulses that stimulate the vagus nerve.

    These signals travel to the brainstem, influencing areas responsible for mood, inflammation, heart rate, and digestion.

    By activating the parasympathetic system, VNS helps the body return to a calm, restorative state, reducing stress and improving physiological balance.


    3. What conditions can VNS help with?


    Vagus nerve stimulation has been studied and used for:


    • Epilepsy (FDA-approved)

    • Depression resistant to medication (FDA-approved)

    • Anxiety and stress

    • Inflammatory conditions

    • Chronic pain and migraines

    • Tinnitus

    • Sleep disorders

    • Gut and digestion issues
       

    Emerging research also explores its role in PTSD, fatigue, and long-COVID recovery.


    4. What are the different types of vagus nerve stimulators?


    There are two main types:


    • Implantable VNS – a surgical device placed under the skin, connected to the vagus nerve in the neck. Commonly used for epilepsy and depression.

    • Non-invasive VNS (tVNS) – external devices that stimulate the vagus nerve through the ear or neck without surgery. These are wearable, portable, and used for wellness and relaxation.


    5. Is vagus nerve stimulation safe?


    Yes,  when used correctly and under professional guidance.


    Implantable VNS devices are approved for specific conditions and have a long record of safety.

    Non-invasive VNS devices are generally low-risk and side effects are minimal, usually limited to mild tingling or temporary skin irritation.


    6. What are the possible side effects of VNS?


    Side effects vary depending on the device type and settings, but can include:


    • Hoarseness or voice changes

    • Mild coughing or throat discomfort

    • Neck or ear tingling

    • Short-term headaches or dizziness
       

    These effects are typically mild and diminish as the body adapts.

    7. How long does it take to see results with VNS?


    Results depend on the individual and the condition being treated.

    For implanted VNS, benefits for epilepsy or depression often appear within weeks to months.

    With non-invasive VNS devices, users may feel immediate relaxation or focus benefits, while long-term improvements (e.g., in mood or sleep) usually develop after 2–6 weeks of regular use.


    8. Can I use a vagus nerve stimulator at home?


    Yes. Most non-invasive VNS devices are designed for safe, at-home use.

    They include guided intensity levels and automatic programs for stress relief, focus, recovery, and sleep improvement.
    Always follow manufacturer instructions or consult a healthcare provider if you have pre-existing conditions.


    9. Who should avoid vagus nerve stimulation?


    People with the following conditions should seek medical advice before using VNS:


    • Pacemakers or implanted electrical devices

    • Severe heart rhythm disorders

    • Pregnancy (precautionary)

    • Neck injuries or recent surgery in the stimulation area
       

    Always consult a clinician before starting VNS therapy.


    10. How is VNS different from other relaxation techniques?


    Unlike breathing exercises or meditation, VNS directly activates the vagal pathways through mild electrical impulses.

    It works physiologically rather than psychologically, offering a measurable and targeted effect on heart rate variability (HRV), stress hormones, and inflammation.

    Pregnancy (precautionary)

  • Neck injuries or recent surgery in the stimulation area
     

Always consult a clinician before starting VNS therapy.


10. How is VNS different from other relaxation techniques?


Unlike breathing exercises or meditation, VNS directly activates the vagal pathways through mild electrical impulses.

It works physiologically rather than psychologically, offering a measurable and targeted effect on heart rate variability (HRV), stress hormones, and inflammation.