Skip to content
nowa.
Notify me
  1. Home
  2. Breathe along
  3. Vagus Nerve Reset

Breathe along · Depth

Vagus Nerve Reset timer: breathe along online

Breathe in for 4, hold for 4, breathe out for 8. The orb breathes, you follow. Free, no sign-up, no cookies.

Ready?

Ideally sitting or lying down

in 4 · hold 4 · out 8

If anything feels uncomfortable, just stop and breathe normally.

How it works

  1. Sit comfortably or lie down.
  2. Breathe in through your nose while the orb grows: 4 seconds.
  3. Hold your breath gently while the orb stays big: 4 seconds.
  4. Breathe out slowly through your nose while the orb shrinks: 8 seconds.

That’s one round, and it takes 16 seconds. Five minutes is plenty to start. Then just breathe normally.

Only hold your breath as long as it feels easy, never until you’re gasping for air. Never practice breath holds in or near water (including the bathtub), while driving, or anywhere a brief blackout could be dangerous. If you feel dizzy or notice tingling in your hands or lips, stop and breathe normally. If you’re pregnant or have a heart or circulation condition, high blood pressure, epilepsy, glaucoma, or panic disorder, skip the hold or check with your doctor first.

If a round feels too long

That’s what Find your breathing pace is for: you tap four times as you breathe in. The orb starts at your own pace and then slows down until you reach six breaths a minute. The shape stays the same: in, a short hold, out twice as long. All three phases get shorter in the same proportion.

What the name means

“Vagus Nerve Reset” is the name of an exercise in nowa. Behind it is a breathing pattern: in for 4 seconds, hold for 4, out for 8. The name doesn’t describe a medical outcome. No study shows that a breathing exercise resets, repairs, or permanently rewires the vagus nerve. The name is a name, not a promise.

What studies show

There’s exactly one small study on the 4-4-8 pattern itself. Fifteen healthy young men did twelve rounds lying down, breathing through the nose. Thirty minutes later, one measure of heart rate variability was higher than before. After 60 minutes, and the next day, there was no measurable difference anymore.1 That’s not a reboot; it’s more like a short, calm stretch. The study tested the technique, not the nowa app.

A meta-analysis of 223 studies shows that slow breathing measurably changes heart rate variability, an indirect sign of the vagus nerve’s influence on the heart.2 But saying an exercise “activates” your vagus nerve is a big simplification, because the measurement itself depends on your breathing.3 More on this, including humming and ear devices: Vagus nerve breathing: what’s real and what’s hype.

This page shares general information about breathing exercises for relaxation and well-being. It is not medical advice and does not replace diagnosis or treatment by a licensed professional. nowa is a wellness app. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease. Only practice while it feels comfortable. If you feel dizzy or short of breath, or notice a racing heart, chest pain, or strong anxiety, stop and breathe normally. If you have a medical condition (for example a heart or lung condition, or epilepsy) or are pregnant, talk to your doctor or midwife before trying new breathing exercises. Never change prescribed treatment on your own.

Embed on your site

Do you teach yoga, coach people, or write about breathing? Embed the breathing orb on your website for free. It only loads files from nowabreathing.com, sets no cookies, stores nothing in the browser and shows no ads.

See how it looks embedded: preview. For your privacy policy: when it loads, the browser sends the visitor’s IP address to nowabreathing.com (hosted by Cloudflare), as with any embedded content.

Sources

  1. Kobayashi R, Negoro H (2024). Acute effects of the 4-4-8 breathing technique on arterial stiffness in healthy young men. Cardiology Journal 31(3):418–426. doi.org/10.5603/cj.96299
    Crossover study, 15 healthy young men, one session
  2. Laborde S, Allen MS, Borges U, Dosseville F, Hosang TJ, Iskra M, Mosley E, Salvotti C, et al. (2022). Effects of voluntary slow breathing on heart rate and heart rate variability: A systematic review and a meta-analysis. Neuroscience & Biobehavioral Reviews 138:104711. doi.org/10.1016/j.neubiorev.2022.104711
    Meta-analysis, 223 studies
  3. Grossman P, Taylor EW (2007). Toward understanding respiratory sinus arrhythmia: relations to cardiac vagal tone, evolution and biobehavioral functions. Biological Psychology 74(2):263–285. doi.org/10.1016/j.biopsycho.2005.11.014
    Review

All sources last checked on November 3, 2026.