Life & fun · September 16, 2023
Every Breath You Take – Heart Rate Variability Training
Through controlled breathing it is possible to regulate your body's stress response. I've built an app to measure and train this effect with a Polar H10 Heart Rate monitor. With every breath you take, you can set the pace of your breathing rate, measure your breathing control with the chest accelerometer, and see how heart rate variability responds.
Every Breath You Take – Heart Rate Variability Training launched on September 16, 2023 with 348 votes, #85 of 4,228 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Every Breath You Take is an app that uses a Polar H10 heart rate monitor to train controlled breathing and measure its effects on heart rate variability. Users set their own breathing pace, and the app tracks breathing control via the chest accelerometer while displaying how heart rate variability responds to breathing exercises. It's designed for people interested in using breathing techniques to regulate their body's stress response.
written from the facts on this page · September 2026
From the sources
Heart Rate Variability Training with the Polar H10 Monitor - kieranabrennan/every-breath-you-take
Does a similar job
all alternatives →
Don't Hold Your Breath – Breathing Analysis with Polar H10 HR Monitor2023 · github.com · ▲51A person's heart rate fluctuates based on factors such as activity, environment, and mental state. Additionally, heart rate variations occur on a much shorter timescale, with changes happening every few seconds. During inhalation, heart rate slightly increases, and it decreases again during exhalation, a phenomenon known as respiratory sinus arrhythmia. There are several reasons for this. Firstly, an increase in volume within the thoracic cavity (the space between the ribs) leads to a corresponding drop in pressure, which is counteracted by a rise in heart rate to regulate blood pressure.…
Breathe CLI – Paced resonance breathing in the macOS terminalMay 2026 · github.com · ▲132I built a terminal app that paces slow breathing at 6 breaths per minute for vagal tone training. It's a single Python file, stdlib only, no dependencies — just run breathe and follow the bar. I'm a cardiology patient (HFrEF). Slow breathing at resonance frequency is one of the few non-pharmacological interventions shown to improve cardiac vagal tone and baroreflex sensitivity (Bernardi et al., Circulation 2002; Lancet 1998). I wanted a frictionless daily habit tool — no app store, no account, no subscription, just open terminal and go. Design constraints, all grounded in the clinical…
BioBreathe: Breath & Pelvic Trainer2025 · apps.apple.com · ▲118Not AI-powered. Built for my wife. Simple & Science-backed.
More life & fun this month
the category →
A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.
Life & fun · 2d ago · permit.petercai.com
- IV
Life & fun · 15d ago · tanzaniaeducationproject.org
Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
Life & fun · 15d ago · bigwords.page
Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
Life & fun · 9d ago · guitoro.com
Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
Life & fun · 13d ago · carrierexplode.com
Life & fun · 23d ago · space.bl2.net
Source: Show HN post ↗
