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Le premier dispositif portable de stimulation non invasive du nerf vague conçu pour cibler avec précision et efficacité les symptômes liés au dérèglement du système nerveux.
La branche auriculaire du nerf vague ciblée par Nurosym est la seule branche périphérique qui atteint la peau, permettant ainsi à une stimulation électrique non invasive d'influencer les voies vagales centrales.
Notre corps dispose d'un système distinct qui gère naturellement notre réponse au stress afin de nous maintenir en bonne santé et de nous permettre de nous adapter. Ce système est régulé par un nerf largement sous-estimé appelé le nerf vague.
Le nerf vague, également appelé nerf crânien X, est une ligne directe bidirectionnelle fonctionnant 24 heures sur 24 et 7 jours sur 7 entre votre cerveau et presque tous les organes principaux : cœur, poumons, intestins, foie, etc.
Garder ce nerf actif est essentiel pour rester en bonne santé et faire preuve d'adaptabilité.
Plus de 70 % des maladies chroniques, notamment les maladies cardiaques, la fatigue, les troubles auto-immuns et la dépression, sont liées au stress chronique et à l'inflammation, c'est-à-dire au déséquilibre du nerf vague (1).
Exposer constamment votre corps à des facteurs de stress (même simples, comme les délais) peut vous enfermer dans un cycle de survie, vous pousser à adopter une attitude de combat ou de fuite et entraîner des symptômes visibles tels que :
Certaines données suggèrent que l'altération du nerf vague peut avoir différentes causes, notamment :
FONCTIONNEL OU STRUCTUREL
Certaines données suggèrent que l'altération du nerf vague peut avoir différentes causes, notamment :
Les chercheurs commencent à établir un lien entre l'activité du nerf vague et la fréquence cardiaque, la digestion et le contrôle autonome.
Concept de stimulation électrique du nerf vague (VNS) introduit par le Dr Jacob Zabara pour traiter l'épilepsie.
La FDA approuve l'implantation d'un dispositif VNS pour traiter l'épilepsie et, plus tard, la dépression — une intervention chirurgicale coûteuse (plus de 30 000 dollars) et risquée.
Parasym entame une décennie d'efforts pour créer un VNS portable sûr et non invasif, ne nécessitant aucune intervention chirurgicale.
Thérapie de neuromodulation vagale auriculaire (basée sur l'oreille) inventée par Parasym pour éviter les effets secondaires de la VNS basée sur le cou, tels que les spasmes musculaires ou les problèmes cardiaques.
Plus de 10 millions de dollars investis dans la R&D, plus de 50 études menées avec Harvard, UCLA et d'autres universités. Nurosym devient le dispositif VNS portable le plus étudié, activant de manière mesurable le nerf vague de 61 % en 5 minutes dans le cadre d'essais contrôlés par placebo.
Nurosym aide votre corps à maintenir son homéostasie, en équilibrant votre réponse « repos et digestion » et en contrant la domination de la réponse « combat ou fuite ».
Responsable de l'état « Repos et digestion »
Responsable de l'état « combat ou fuite »
When it comes to anxiety the papers I've looked at do provide evidence of support that transcutaneous vagal nerve stimulation is effective at improving parasympathetic drive, it can reduce fatigue and personally I've seen this improves my HRV when using this device.
Dr. James Gill
Associate Professor at Warwick Medical School
Step 1
The tragus is the front door to your Vagus Nerve.
It allows Nurosym to gently tap in and engage your autonomic nervous system with laser precision.
Step 2
Important: Adjust the power with every session so it remains a pleasant feeling and not causing you discomfort. Higher level or longer sessions doesn't mean better. Every session is unique depending on the state of your nervous system.
Start with lower levels and shorter sessions, assess, then gradually increase, but always make sure the feeling is pleasant and not causing you discomfort.
Shut down stress circuits
Start anti-inflammatory pathways
Trigger a cascade of therapeutic effects
Improve cognitive & physical performance
Step 3
You may notice your system winding down, shoulders dropping, leading to a clearer mind within minutes
Activating Your Parasympathetic Tone - The signal travels to a control center in the brainstem, telling the body to shift from stress mode into rest, recovery, and healing.
Step 4
When you apply Nurosym consistently you train your body to naturally favor a parasympathetic rest and digest state and easily shift balance away from sympathetic fight or flight dominance.
Speed up recovery and reduce soreness
Enhance your meditation with deeper relaxation.
Boost focus and maintain mental clarity all day long.
Turn every walk into a moment of relaxation and balance.
Support Digestion and activate your “rest and digest” state.
Unwind faster and enjoy deeper, more restorative sleep.
Stay calm and centered when life gets overwhelming.
Speed up recovery and reduce soreness
Enhance your meditation with deeper relaxation.
Boost focus and maintain mental clarity all day long.
Turn every walk into a moment of relaxation and balance.
Support Digestion and activate your “rest and digest” state.
Unwind faster and enjoy deeper, more restorative sleep.
Stay calm and centered when life gets overwhelming.
When used correctly, Nurosym may boost parasympathetic activity by over 61% in just five minutes and deliver 2-4x greater parasympathetic activation than breathwork or meditation.
Use Nurosym as soon as you wake up to kickstart your parasympathetic system. This session helps set a calm, balanced tone for the day ahead. Especially useful for those managing symptoms like brain fog and fatigue.
Before/after a stressful meeting, heavy meal, or a tough workout, use Nurosym to reduce stress, aid digestion, or accelerate recovery. Integrates seamlessly into breaks or quiet work sessions.
Use Nurosym during your evening routine — whether you’re relaxing, reading, or winding down. Prepares your nervous system for deep, restorative sleep by lowering stress hormones and promoting calm.
15-30 minutes
Use Nurosym as soon as you wake up to kickstart your parasympathetic system. This session helps set a calm, balanced tone for the day ahead. Especially useful for those managing symptoms like brain fog and fatigue.
STUDY PARTICIPANT OUTCOMES - FIRST 30 DAYS AND BEYOND
Staying consistent during the first 30 days is crucial. Regular daily use helps your nervous system adapt, regulate, and strengthen. Even if improvements seem small at first, the cumulative effect builds significantly over time.
1st Session
5-10 Days
30-90 Days
3+ Months
1st Session
5-10 Days
30-90 Days
3+ Months
DESIGNED FOR ACCESSIBILITY-FIRST
Meant to be used without limitations
No distraction, use during any non-intense activity
Battery lasts for weeks
Small and light, so you can take it during travel
No apps or paid subscriptions
No gel needed
Snug fit ensuring constant Vagus nerve contact
Medical-grade electrode to prevent skin/nerve damage
Add a little moisture like soap water, no gels or other lubricants needed
The battery lasts 15+ hours when used as intended.
No apps or various programs. Adjust timing, intensity, and go.
Kirsty
FORMER NATIONAL SWIMMER
“I could lift my arm. Walk to the bathroom. Eat sitting up. It felt like my body finally got the memo: you’re safe... There’s no single cure. But there are ways to help your system shift out of chaos—and into something quieter, steadier. For me, that changed everything.”
Filippe
ACTIVE PROFESSIONAL
“I remember doing a session late in the day before seeing friends. For the first time in months, I felt stable. That was huge. I use it alongside meditation, either together or one after the other. It became part of my daily routine.”
Experience Nurosym at home and return it for a full refund if you don't love it
Resets your resting state for deeper sleep and more daily energy
Ongoing device protection for up to 5 years.
A practicing doctor of psychiatry, Elisabetta has an MBA from INSEAD Business School, and experience in direct patient care, neuroscience research, communication and management. Dr. Burchi is a physician-scientist, working with Parasym in clinical affairs with a track record of publishing in the most important scientific journals such as The Lancet, writing successful grant proposals for the NIH, and leading the production of editorial, clinical, regulatory and promotional material in collaborative multidisciplinary teams. Dr. Burchi has also coordinated clinical trials and implemented a tele-medicine practice which received a certification of excellence among more than 100,000 professionals.
1. Liu YZ, Wang YX, Jiang CL.
Frontiers in Human Neuroscience. 2017.
