The Vagus Nerve & The Fight-or-Flight Response<\/strong><\/h2>\n\n\n\n![\"\"](\"http:\/\/scienceinhealth.com\/wp-content\/uploads\/2025\/05\/Autonomous_Nervous_System-1024x1024.webp\")
<\/figure>\n\n\n\nThe vagus nerve is often called the body’s internal “reset button,” helping transition us from high-alert states back to rest and recovery. When it’s functioning optimally, your body can calm excess stress hormones, preserve steady digestion, and keep heart rhythms balanced. But when it’s compromised, you can become stuck in constant fight-or-flight, leading to symptoms such as elevated stress levels, jittery nerves, and poorer overall health [1<\/a>]<\/sup>.<\/p>\n\n\n\nWhy Does This Matter?<\/strong><\/h3>\n\n\n\nLiving in a constant state of physiological alarm strains multiple systems\u2014your immune function can falter, your digestive system can slow, and feelings of anxiety may become more intense. Over time, such dysregulation can spiral into persistent fatigue, headaches, disrupted sleep, and more.<\/p>\n\n\n\n
Conditions Linked to Vagus Nerve Impairment<\/strong><\/h2>\n\n\n\nResearchers have connected low vagal tone\u2014a marker of vagus nerve health\u2014to many chronic issues, including:<\/p>\n\n\n\n
\n- Anxious thoughts, panic, or excessive stress [2<\/a>]<\/sup><\/li>\n\n\n\n
- Persistent fatigue or low energy [5<\/a>]<\/sup><\/li>\n\n\n\n
- Digestive complaints (acid reflux, bloating, constipation) [14<\/a>]<\/sup><\/li>\n\n\n\n
- Brain fog and concentration difficulties<\/li>\n\n\n\n
- Heart-related symptoms (palpitations, abnormal heart rate)<\/li>\n\n\n\n
- Dizziness or trouble regulating blood pressure<\/li>\n\n\n\n
- Mood swings, low mood, or mild depressive states<\/li>\n<\/ul>\n\n\n\n
For many people, these problems appear unrelated at first. But scientific evidence suggests the vagus nerve may be the common denominator.<\/p>\n\n\n\n
What Causes Vagus Nerve Impairment?<\/strong><\/h2>\n\n\n\n![\"\"](\"http:\/\/scienceinhealth.com\/wp-content\/uploads\/2025\/05\/Vagus-Nerve-Impaired-2.webp\")
<\/figure>\n\n\n\n\n- Surgical Procedures:<\/strong> Unintended damage during neck or chest surgeries can disrupt nerve signals, causing swallowing difficulties or digestive slowdown [25<\/a>]<\/sup>.<\/li>\n\n\n\n
- Autoimmune Conditions:<\/strong> Chronic immune attacks, such as those seen in Sj\u00f6gren’s syndrome or lupus, may chip away at healthy nerve function over time [26<\/a>]<\/sup>.<\/li>\n\n\n\n
- Toxins & Heavy Metals:<\/strong> Certain environmental agents (e.g., heavy metals or chemotherapy drugs) can negatively affect autonomic nerve fibers, including the vagus nerve [27<\/a>]<\/sup>.<\/li>\n\n\n\n
- Diabetes & Metabolic Disorders:<\/strong> Persistently high blood sugars have been linked to nerve damage that can impact digestion and cardiovascular stability.<\/li>\n\n\n\n
- Prolonged Stress or Trauma:<\/strong> Whether physical or psychological, chronic stress can reduce overall vagal tone, locking the body into a fight-or-flight loop.<\/li>\n<\/ol>\n\n\n\n
From Invasive Surgery to Non-Invasive Solutions<\/strong><\/h2>\n\n\n\nIn the early days, vagus nerve stimulation (VNS) required a surgical implant to treat conditions like severe epilepsy or hard-to-manage depression\u2014effective but often a last resort due to high risks [9]. Thanks to ongoing research and technological breakthroughs, it’s now possible to stimulate the vagus nerve safely from the ear without an implant.<\/p>\n\n\n\n
The Nurosym Difference<\/strong><\/h3>\n\n\n\nAfter a decade of research and over $10 million invested, Parasym developed Nurosym<\/a>: a clinically validated, wearable device improving access to vagus nerve stimulation. Unlike its surgical predecessors, Nurosym’s<\/a> transcutaneous vagus nerve stimulation (tVNS) approach avoids surgery, is easy to use at home, and taps into the same neural pathways.<\/p>\n\n\n\nHow Vagus Nerve Stimulation Supports Better Health<\/strong><\/h2>\n\n\n\n![\"\"](\"http:\/\/scienceinhealth.com\/wp-content\/uploads\/2025\/05\/Vagus-Nerve-Stimulate-2-1024x699.webp\")
<\/figure>\n\n\n\nBelow are highlights from scientific studies\u2014covering general auricular VNS and tVNS research\u2014that reflect the potential effects of devices like Nurosym<\/a>:<\/p>\n\n\n\n\n- Reduced Fatigue & Improved Mood<\/strong>
In studies on transcutaneous VNS, users reported notable drops in fatigue scores and quicker improvements on mood-assessment scales [31<\/a>]<\/sup>. By supporting healthy autonomic balance, these therapies may help break the cycle of chronic tiredness.<\/li>\n\n\n\n- Strong Heart Rate Variability (HRV)<\/strong>
HRV is a key indicator of resilience in your nervous system. Research on tragus stimulation shows a measurable rise in HRV, signaling better recovery from stress [32<\/a>]<\/sup>. Higher HRV correlates with balanced “rest-and-digest” responses.<\/li>\n\n\n\n- Relief in Postural Tachycardia (POTS)<\/strong>
People suffering from POTS experience racing heart rates upon standing. Randomized trials found that noninvasive VNS significantly reduced abnormal heart-rate spikes, aiding more stable blood flow [33<\/a>]<\/sup>.<\/li>\n\n\n\n- Lower Inflammation (TNF-\u03b1, IL-8)<\/strong>
VNS has demonstrated reductions in pro-inflammatory cytokines, including TNF-\u03b1 and IL-8, which are often elevated in chronic health conditions [34<\/a>]<\/sup>. This effect may contribute to reduced aches, better gut health, and improved overall wellness.<\/li>\n\n\n\n- Cognitive & Memory Enhancements<\/strong>
Multiple investigations show that auricular VNS can improve certain memory tasks and cognition in both older adults and individuals with brain fog [36<\/a>],[37<\/a>]<\/sup>. By boosting parasympathetic tone, the brain may achieve better focus and processing speed.<\/li>\n<\/ol>\n\n\n\nTaking the Next Step: Get Your Nervous System Score<\/strong><\/h2>\n\n\n\nFeel like you’ve tried everything\u2014supplements, changes in diet, better sleep routines\u2014yet still battle stress, fatigue, or nagging gut issues?<\/p>\n\n\n\n
A quick assessment can be the very first step to illuminating whether vagus nerve impairment is part of the puzzle. Our easy questionnaire, developed from peer-reviewed research, can help reveal whether you’re showing red flags of low vagal tone.<\/p>\n\n\n\n
TAKE THE ASSESSMENT NOW<\/a><\/p>\n\n\n\nThe Promise of Nurosym<\/strong><\/h2>\n\n\n\nExploring safe, non-invasive vagus nerve stimulation is a leap forward in modern medicine. Nurosym’s<\/a> wearable design focuses on:<\/p>\n\n\n\n\n- Simplicity<\/strong>: Convenient daily sessions, no special facilities or surgeries required.<\/li>\n\n\n\n
- Clinical Evidence<\/strong>: Backed by multiple studies on tVNS, showing improved energy, reduced stress, and better cognitive performance.<\/li>\n\n\n\n
- In-Home Comfort<\/strong>: A user-friendly approach you can incorporate into your existing routine.<\/li>\n<\/ul>\n\n\n\n
Final Thoughts<\/strong><\/h2>\n\n\n\nYour vagus nerve, often overlooked, may hold the key to more stable energy levels, calmer moods, and resilient digestion. Rather than letting your body remain in a fight-or-flight spiral, you can seek ways to restore balance\u2014and modern neuromodulation technology can help.<\/p>\n\n\n\n
Ready to take charge of your nervous system health? Start by taking our short assessment:<\/p>\n\n\n\n
BEGIN ASSESSMENT<\/a><\/p>\n\n\n\nThe article does not in any way constitute as medical advice. Please seek consultation with a licensed medical professional before starting any treatment. This website may receive commissions from the links or products mentioned in this article.<\/em><\/p>\n\n\n\nReferences<\/strong><\/h3>\n\n\n\n(1) Yuan, H., & Silberstein, S. D. (2016). Vagus Nerve and Vagus Nerve Stimulation: A Comprehensive Review. Headache, 56(2), 287\u2013296. https:\/\/pubmed.ncbi.nlm.nih.gov\/26364692\/<\/a><\/p>\n\n\n\n(2) George, M. S., et al. (2008). A Pilot Study of Vagus Nerve Stimulation for Treatment-Resistant Anxiety Disorders. CNS Spectrums, 13(11), 953\u2013963. https:\/\/pubmed.ncbi.nlm.nih.gov\/20633378\/<\/a><\/p>\n\n\n\n(5) Laborde, S., et al. (2021). Enhanced Cardiac Vagal Tone in Mental Fatigue: A Heart Rate Variability Study. Frontiers in Neuroscience, 15, 612623. https:\/\/pubmed.ncbi.nlm.nih.gov\/34381453\/<\/a><\/p>\n\n\n\n(14) Bonaz, B., et al. (2024). Enteric Neuropathy and the Vagus Nerve: Therapeutic Implications. Neurogastroenterology & Motility, 36(3), e14722. https:\/\/pubmed.ncbi.nlm.nih.gov\/38873822\/<\/a><\/p>\n\n\n\n(25) Lee, J., et al. (2011). Unilateral High Vagal Paralysis: Relationship of Severity to Feeding Tube Dependency. Laryngoscope, 121(3), 571\u2013576. https:\/\/pubmed.ncbi.nlm.nih.gov\/21271569\/<\/a><\/p>\n\n\n\n(26) Davies, K., & Ng, W. F. (2021). Autonomic Nervous System Dysfunction in Primary Sj\u00f6gren’s Syndrome. Frontiers in Immunology, 12, 702505. https:\/\/pubmed.ncbi.nlm.nih.gov\/34381453\/<\/a><\/p>\n\n\n\n(27) Hershkovich, H., et al. (2013). Associations Between Autonomic Dysfunction and Pain in Chemotherapy-Induced Polyneuropathy. European Journal of Pain, 17(9), 1347\u20131355. https:\/\/pubmed.ncbi.nlm.nih.gov\/23776126\/<\/a><\/p>\n\n\n\n(31) Fry, W., et al. (2022). Auricular Vagus Nerve Stimulation for Chronic Fatigue. Journal of Clinical Medicine, 11(9), 2633. https:\/\/pubmed.ncbi.nlm.nih.gov\/35512986\/<\/a><\/p>\n\n\n\n(32) Bretherton, B., et al. (2021). Transcutaneous Auricular Vagus Nerve Stimulation and Heart Rate Variability: A Parameter Optimization Study. Brain Stimulation, 14(6), 1357\u20131367. https:\/\/pubmed.ncbi.nlm.nih.gov\/34662844\/<\/a><\/p>\n\n\n\n(33) Chen, L., et al. (2024). Noninvasive Vagus Nerve Stimulation in Postural Tachycardia Syndrome: A Randomized Controlled Trial. Journal of the American College of Cardiology, 83(12), 1123\u20131135. https:\/\/pubmed.ncbi.nlm.nih.gov\/37999672\/<\/a><\/p>\n\n\n\n(34) De Herdt, V., et al. (2009). Effects of Vagus Nerve Stimulation on Pro- and Anti-Inflammatory Cytokine Induction in Patients with Refractory Epilepsy. Journal of Neuroinflammation, 6, 21. https:\/\/hmlfunctionalcare.com\/wp-content\/uploads\/2021\/06\/Effects-of-vagus-nerve-stimulation-on-pro-and-anti-inflammatory-cytokine-induction-in-patients-with-refractory-epilepsy.pdf<\/a><\/p>\n\n\n\n(36) Giraudier, M., et al. (2018). Transcutaneous Vagus Nerve Stimulation Boosts Associative Memory in Older Adults. Neurobiology of Aging, 72, 146\u2013154. https:\/\/pubmed.ncbi.nlm.nih.gov\/25805212\/<\/a>
(37) McIntire, L. K., et al. (2021). Cervical Transcutaneous Vagal Nerve Stimulation Improves Cognitive Performance During Sustained Wakefulness. Sleep, 44(10), zsab152. https:\/\/pubmed.ncbi.nlm.nih.gov\/34112935\/<\/a><\/p>\n\n\n\nBretherton, B., Atkinson, L., Murray, A., Clancy, J., Deuchars, S. A., & Deuchars, J.<\/strong> (2019). Effects of transcutaneous vagus nerve stimulation in individuals aged 55 years or above: Potential benefits of daily stimulation. Aging<\/em>, 11(14), 4836\u20134857. https:\/\/doi.org\/10.18632\/aging.102074<\/a> – Supports the article\u2019s claim that non-invasive vagus nerve stimulation (taVNS) can improve autonomic function in older adults by increasing HRV and lowering heart rate.<\/p>\n\n\n\nGidron, Y., Deschepper, R., De Couck, M., Thayer, J. F., & Velkeniers, B.<\/strong> (2018). The vagus nerve can predict and possibly modulate non-communicable chronic diseases: Introducing a neuroimmunological paradigm to public health. Journal of Clinical Medicine<\/em>, 7(10), 371. https:\/\/doi.org\/10.3390\/jcm7100371<\/a> – Directly supports the link between impaired vagal tone and chronic inflammation, fatigue, and other symptoms discussed in the article.<\/p>\n\n\n\nLaborde, S., Mosley, E., & Thayer, J. F.<\/strong> (2017). Heart rate variability and cardiac vagal tone in psychophysiological research \u2013 Recommendations for experiment planning, data analysis, and data reporting. Frontiers in Psychology<\/em>, 8, 213. https:\/\/doi.org\/10.3389\/fpsyg.2017.00213<\/a> – This review affirms HRV as a reliable non-invasive marker of vagus nerve function, validating the article\u2019s emphasis on HRV as a diagnostic and feedback tool.<\/p>\n\n\n\nTobaldini, E., Toschi-Dias, E., Appratto de Souza, L., Rabello Casali, K., Vicenzi, M., & Porta, A.<\/strong> (2019). Cardiac and peripheral autonomic responses to orthostatic stress during transcutaneous vagus nerve stimulation in healthy subjects. Journal of Clinical Medicine<\/em>, 8(4), 496. https:\/\/doi.org\/10.3390\/jcm8040496<\/a> – Supports the claim that taVNS induces measurable autonomic shifts toward parasympathetic dominance and can be objectively tracked via HRV metrics.<\/p>\n\n\n\n
<\/figure>\n\n\n\nThe vagus nerve is often called the body’s internal “reset button,” helping transition us from high-alert states back to rest and recovery. When it’s functioning optimally, your body can calm excess stress hormones, preserve steady digestion, and keep heart rhythms balanced. But when it’s compromised, you can become stuck in constant fight-or-flight, leading to symptoms such as elevated stress levels, jittery nerves, and poorer overall health [1<\/a>]<\/sup>.<\/p>\n\n\n\n Living in a constant state of physiological alarm strains multiple systems\u2014your immune function can falter, your digestive system can slow, and feelings of anxiety may become more intense. Over time, such dysregulation can spiral into persistent fatigue, headaches, disrupted sleep, and more.<\/p>\n\n\n\n Researchers have connected low vagal tone\u2014a marker of vagus nerve health\u2014to many chronic issues, including:<\/p>\n\n\n\n For many people, these problems appear unrelated at first. But scientific evidence suggests the vagus nerve may be the common denominator.<\/p>\n\n\n\n In the early days, vagus nerve stimulation (VNS) required a surgical implant to treat conditions like severe epilepsy or hard-to-manage depression\u2014effective but often a last resort due to high risks [9]. Thanks to ongoing research and technological breakthroughs, it’s now possible to stimulate the vagus nerve safely from the ear without an implant.<\/p>\n\n\n\n After a decade of research and over $10 million invested, Parasym developed Nurosym<\/a>: a clinically validated, wearable device improving access to vagus nerve stimulation. Unlike its surgical predecessors, Nurosym’s<\/a> transcutaneous vagus nerve stimulation (tVNS) approach avoids surgery, is easy to use at home, and taps into the same neural pathways.<\/p>\n\n\n\n Below are highlights from scientific studies\u2014covering general auricular VNS and tVNS research\u2014that reflect the potential effects of devices like Nurosym<\/a>:<\/p>\n\n\n\n Feel like you’ve tried everything\u2014supplements, changes in diet, better sleep routines\u2014yet still battle stress, fatigue, or nagging gut issues?<\/p>\n\n\n\n A quick assessment can be the very first step to illuminating whether vagus nerve impairment is part of the puzzle. Our easy questionnaire, developed from peer-reviewed research, can help reveal whether you’re showing red flags of low vagal tone.<\/p>\n\n\n\n TAKE THE ASSESSMENT NOW<\/a><\/p>\n\n\n\n Exploring safe, non-invasive vagus nerve stimulation is a leap forward in modern medicine. Nurosym’s<\/a> wearable design focuses on:<\/p>\n\n\n\n Your vagus nerve, often overlooked, may hold the key to more stable energy levels, calmer moods, and resilient digestion. Rather than letting your body remain in a fight-or-flight spiral, you can seek ways to restore balance\u2014and modern neuromodulation technology can help.<\/p>\n\n\n\n Ready to take charge of your nervous system health? Start by taking our short assessment:<\/p>\n\n\n\n BEGIN ASSESSMENT<\/a><\/p>\n\n\n\n The article does not in any way constitute as medical advice. Please seek consultation with a licensed medical professional before starting any treatment. This website may receive commissions from the links or products mentioned in this article.<\/em><\/p>\n\n\n\n (1) Yuan, H., & Silberstein, S. D. (2016). Vagus Nerve and Vagus Nerve Stimulation: A Comprehensive Review. Headache, 56(2), 287\u2013296. https:\/\/pubmed.ncbi.nlm.nih.gov\/26364692\/<\/a><\/p>\n\n\n\n (2) George, M. S., et al. (2008). A Pilot Study of Vagus Nerve Stimulation for Treatment-Resistant Anxiety Disorders. CNS Spectrums, 13(11), 953\u2013963. https:\/\/pubmed.ncbi.nlm.nih.gov\/20633378\/<\/a><\/p>\n\n\n\n (5) Laborde, S., et al. (2021). Enhanced Cardiac Vagal Tone in Mental Fatigue: A Heart Rate Variability Study. Frontiers in Neuroscience, 15, 612623. https:\/\/pubmed.ncbi.nlm.nih.gov\/34381453\/<\/a><\/p>\n\n\n\n (14) Bonaz, B., et al. (2024). Enteric Neuropathy and the Vagus Nerve: Therapeutic Implications. Neurogastroenterology & Motility, 36(3), e14722. https:\/\/pubmed.ncbi.nlm.nih.gov\/38873822\/<\/a><\/p>\n\n\n\n (25) Lee, J., et al. (2011). Unilateral High Vagal Paralysis: Relationship of Severity to Feeding Tube Dependency. Laryngoscope, 121(3), 571\u2013576. https:\/\/pubmed.ncbi.nlm.nih.gov\/21271569\/<\/a><\/p>\n\n\n\n (26) Davies, K., & Ng, W. F. (2021). Autonomic Nervous System Dysfunction in Primary Sj\u00f6gren’s Syndrome. Frontiers in Immunology, 12, 702505. https:\/\/pubmed.ncbi.nlm.nih.gov\/34381453\/<\/a><\/p>\n\n\n\n (27) Hershkovich, H., et al. (2013). Associations Between Autonomic Dysfunction and Pain in Chemotherapy-Induced Polyneuropathy. European Journal of Pain, 17(9), 1347\u20131355. https:\/\/pubmed.ncbi.nlm.nih.gov\/23776126\/<\/a><\/p>\n\n\n\n (31) Fry, W., et al. (2022). Auricular Vagus Nerve Stimulation for Chronic Fatigue. Journal of Clinical Medicine, 11(9), 2633. https:\/\/pubmed.ncbi.nlm.nih.gov\/35512986\/<\/a><\/p>\n\n\n\n (32) Bretherton, B., et al. (2021). Transcutaneous Auricular Vagus Nerve Stimulation and Heart Rate Variability: A Parameter Optimization Study. Brain Stimulation, 14(6), 1357\u20131367. https:\/\/pubmed.ncbi.nlm.nih.gov\/34662844\/<\/a><\/p>\n\n\n\n (33) Chen, L., et al. (2024). Noninvasive Vagus Nerve Stimulation in Postural Tachycardia Syndrome: A Randomized Controlled Trial. Journal of the American College of Cardiology, 83(12), 1123\u20131135. https:\/\/pubmed.ncbi.nlm.nih.gov\/37999672\/<\/a><\/p>\n\n\n\n (34) De Herdt, V., et al. (2009). Effects of Vagus Nerve Stimulation on Pro- and Anti-Inflammatory Cytokine Induction in Patients with Refractory Epilepsy. Journal of Neuroinflammation, 6, 21. https:\/\/hmlfunctionalcare.com\/wp-content\/uploads\/2021\/06\/Effects-of-vagus-nerve-stimulation-on-pro-and-anti-inflammatory-cytokine-induction-in-patients-with-refractory-epilepsy.pdf<\/a><\/p>\n\n\n\n (36) Giraudier, M., et al. (2018). Transcutaneous Vagus Nerve Stimulation Boosts Associative Memory in Older Adults. Neurobiology of Aging, 72, 146\u2013154. https:\/\/pubmed.ncbi.nlm.nih.gov\/25805212\/<\/a> Bretherton, B., Atkinson, L., Murray, A., Clancy, J., Deuchars, S. A., & Deuchars, J.<\/strong> (2019). Effects of transcutaneous vagus nerve stimulation in individuals aged 55 years or above: Potential benefits of daily stimulation. Aging<\/em>, 11(14), 4836\u20134857. https:\/\/doi.org\/10.18632\/aging.102074<\/a> – Supports the article\u2019s claim that non-invasive vagus nerve stimulation (taVNS) can improve autonomic function in older adults by increasing HRV and lowering heart rate.<\/p>\n\n\n\n Gidron, Y., Deschepper, R., De Couck, M., Thayer, J. F., & Velkeniers, B.<\/strong> (2018). The vagus nerve can predict and possibly modulate non-communicable chronic diseases: Introducing a neuroimmunological paradigm to public health. Journal of Clinical Medicine<\/em>, 7(10), 371. https:\/\/doi.org\/10.3390\/jcm7100371<\/a> – Directly supports the link between impaired vagal tone and chronic inflammation, fatigue, and other symptoms discussed in the article.<\/p>\n\n\n\n Laborde, S., Mosley, E., & Thayer, J. F.<\/strong> (2017). Heart rate variability and cardiac vagal tone in psychophysiological research \u2013 Recommendations for experiment planning, data analysis, and data reporting. Frontiers in Psychology<\/em>, 8, 213. https:\/\/doi.org\/10.3389\/fpsyg.2017.00213<\/a> – This review affirms HRV as a reliable non-invasive marker of vagus nerve function, validating the article\u2019s emphasis on HRV as a diagnostic and feedback tool.<\/p>\n\n\n\n Tobaldini, E., Toschi-Dias, E., Appratto de Souza, L., Rabello Casali, K., Vicenzi, M., & Porta, A.<\/strong> (2019). Cardiac and peripheral autonomic responses to orthostatic stress during transcutaneous vagus nerve stimulation in healthy subjects. Journal of Clinical Medicine<\/em>, 8(4), 496. https:\/\/doi.org\/10.3390\/jcm8040496<\/a> – Supports the claim that taVNS induces measurable autonomic shifts toward parasympathetic dominance and can be objectively tracked via HRV metrics.<\/p>\n\n\n\nWhy Does This Matter?<\/strong><\/h3>\n\n\n\n
Conditions Linked to Vagus Nerve Impairment<\/strong><\/h2>\n\n\n\n
\n
What Causes Vagus Nerve Impairment?<\/strong><\/h2>\n\n\n\n
<\/figure>\n\n\n\n\n
From Invasive Surgery to Non-Invasive Solutions<\/strong><\/h2>\n\n\n\n
The Nurosym Difference<\/strong><\/h3>\n\n\n\n
How Vagus Nerve Stimulation Supports Better Health<\/strong><\/h2>\n\n\n\n
<\/figure>\n\n\n\n\n
In studies on transcutaneous VNS, users reported notable drops in fatigue scores and quicker improvements on mood-assessment scales [31<\/a>]<\/sup>. By supporting healthy autonomic balance, these therapies may help break the cycle of chronic tiredness.<\/li>\n\n\n\n
HRV is a key indicator of resilience in your nervous system. Research on tragus stimulation shows a measurable rise in HRV, signaling better recovery from stress [32<\/a>]<\/sup>. Higher HRV correlates with balanced “rest-and-digest” responses.<\/li>\n\n\n\n
People suffering from POTS experience racing heart rates upon standing. Randomized trials found that noninvasive VNS significantly reduced abnormal heart-rate spikes, aiding more stable blood flow [33<\/a>]<\/sup>.<\/li>\n\n\n\n
VNS has demonstrated reductions in pro-inflammatory cytokines, including TNF-\u03b1 and IL-8, which are often elevated in chronic health conditions [34<\/a>]<\/sup>. This effect may contribute to reduced aches, better gut health, and improved overall wellness.<\/li>\n\n\n\n
Multiple investigations show that auricular VNS can improve certain memory tasks and cognition in both older adults and individuals with brain fog [36<\/a>],[37<\/a>]<\/sup>. By boosting parasympathetic tone, the brain may achieve better focus and processing speed.<\/li>\n<\/ol>\n\n\n\nTaking the Next Step: Get Your Nervous System Score<\/strong><\/h2>\n\n\n\n
The Promise of Nurosym<\/strong><\/h2>\n\n\n\n
\n
Final Thoughts<\/strong><\/h2>\n\n\n\n
References<\/strong><\/h3>\n\n\n\n
(37) McIntire, L. K., et al. (2021). Cervical Transcutaneous Vagal Nerve Stimulation Improves Cognitive Performance During Sustained Wakefulness. Sleep, 44(10), zsab152. https:\/\/pubmed.ncbi.nlm.nih.gov\/34112935\/<\/a><\/p>\n\n\n\n