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Your body has a master off switch.
We just unlocked it.
Clinically studied transcutaneous vagus nerve stimulation — the same technology hospitals have used since 1988. Now in your ear. No drugs. No dependency. No subscription.
Four Steps. One System. Total Reset.
Every stress solution on the market works through your bloodstream. Nerva works through your nervous system — directly.
The auricular branch of the vagus nerve is the only part that surfaces on your body. It sits in the tragus of your ear — exactly where Nerva attaches.
A precisely calibrated 0.5–1.5 mA signal stimulates the vagus nerve. Imperceptible to most users, identical in mechanism to hospital-grade VNS since 1988.
The signal reaches the nucleus tractus solitarius in your brainstem, which inhibits the hypothalamus from releasing stress hormones — cutting cortisol at the source.
HRV rises. Cortisol drops. Sleep deepens. Inflammation cools. Mood lifts. Your nervous system finally exhales — and stays there.
What Happens When Your Vagus Nerve Wakes Up
Deep Sleep Restored
72% of chronic insomnia patients slept through the night after 20 weeks. No sleeping pills. No grogginess. No dependency. Just your nervous system doing what it was built to do.
Cortisol Neutralized
Direct vagal activation cuts the cortisol stress spike by up to 49% compared to control — not over weeks, but within a single session. This is why chronic stress fat starts moving.
Anxiety That Actually Lifts
In an 838-patient meta-analysis, taVNS showed equivalent efficacy to antidepressants for depression — with fewer side effects. Users describe it as 'flipping a calmness switch.'
Focus & Clarity
Higher HRV — which Nerva directly improves — is linked to better executive function, task switching, and cognitive flexibility. Sharper mind, without stimulants.
Stress-Driven Fat Loss
Chronic cortisol signals your body to store visceral fat regardless of diet. By resetting the HPA axis, Nerva removes the hormonal roadblock that keeps stubborn belly fat locked in place.
Inflammation Cooled
The vagus nerve controls the cholinergic anti-inflammatory pathway. Clinical studies show VNS reduces TNF-α for up to 84 days — protecting your immune system from chronic stress damage.
The Numbers Don't Lie
Every claim is backed by published, peer-reviewed clinical trials — not marketing surveys.
What Others Get Wrong. We Get Right.
Join 2,400+ Customers Who Finally Found Their Off Switch
★★★★★ 4.9 average across 400+ verified reviews
I've tried melatonin, magnesium, CBD, every sleep app — nothing worked. Two weeks with Nerva and I slept through the night for the first time since my daughter was born. My Oura ring showed my HRV went up measurably within days. I'm genuinely shocked.
I've dealt with panic attacks for 6 years. SSRIs numbed me, therapy helped slowly, but nothing gave me an in-the-moment tool. I clipped this on during a panic attack and it was over in 20 seconds. I've never had anything work that fast. This is different.
I'm 44, eat clean, exercise 4x a week and couldn't shift the belly fat. My doctor said it was cortisol-related. Three weeks with Nerva and I've lost 4 pounds — without changing anything else. My stress levels feel completely different. The research on this is real.
Frequently Asked Questions
Vagus nerve stimulation has been FDA-approved since 1997 (epilepsy) and 2005 (treatment-resistant depression). The transcutaneous (non-invasive) version has been studied in dozens of randomized controlled trials. Key evidence: a JAMA Network Open RCT (2024, n=72) showed 72% of chronic insomnia patients slept through the night by week 20. An 838-patient meta-analysis (Journal of Affective Disorders, 2023) showed efficacy comparable to antidepressants. A 2024 double-blind study showed a 49% lower cortisol spike vs. control. Every claim on this page links to a published study.
Many users report a noticeable shift in anxiety and calm within the first session. For sleep, most users see measurable improvement within 1–2 weeks of consistent daily use. The 72% sleep responder rate in the JAMA trial was measured at week 20, suggesting benefits continue to build over time. Unlike supplements, there's no "loading period" — the mechanism is electrical, not biochemical.
No. Nerva operates completely standalone — no smartphone required, no internet connection needed, no subscription. This is one of the most common complaints users have with competitor devices (Pulsetto requires internet to function; others lock features behind a monthly paywall). We believe if you've bought the device, you own the full experience.
tVNS is exceptionally well-tolerated. A 2022 systematic review in Scientific Reports analyzed all published clinical trials and found only mild, transient side effects (ear discomfort, occasional tingling) — zero serious adverse events. The current used (0.5–1.5 mA) is far below any cardiac risk threshold. Contraindications: do not use if you have an implanted pacemaker, cardiac arrhythmia, are pregnant, or have active epilepsy without medical supervision. When in doubt, consult your physician.
Yes. As a bioelectronic wellness device backed by clinical evidence, Nerva is eligible for purchase using HSA and FSA funds. We recommend checking with your plan administrator to confirm eligibility under your specific plan.
We offer a full 60-day money-back guarantee — no questions asked. If you don't feel a difference within 60 days of consistent use, contact us and we'll refund you completely. No return shipping deducted. No restocking fees. We mean it.
Your nervous system is begging you to press pause.
30+ clinical studies. Zero drugs. Zero subscriptions. One decision that could change how you sleep, feel, and function — starting tonight.
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