Don't Hold Your Breath – Breathing Analysis with Polar H10 HR Monitor
A 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.…
Don't Hold Your Breath – Breathing Analysis with Polar H10 HR Monitor launched on April 14, 2023 with 51 votes, #1,455 of 4,853 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Don't Hold Your Breath is a breathing analysis tool that works with the Polar H10 heart rate monitor to track respiratory sinus arrhythmia—the natural fluctuations in heart rate that occur during inhalation and exhalation. The software measures heart rate variability and breathing patterns to help users understand their autonomic nervous system response and stress levels. It is designed for people interested in exploring the physiological connections between breathing, heart rate, and their parasympathetic and sympathetic nervous system activity.
written from the facts on this page · September 2026
From the sources
Breathing analysis with Polar H10 Heart Rate Monitor - kieranabrennan/dont-hold-your-breath
In the maker’s words, at launch
A 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…
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