Sources before slogans

The evidence shelf—and how we use it.

One Quiet Minute is a practical timer, not a research project. These are the studies and official health sources used to keep its claims useful, proportionate, and checkable.

Source review completed: 2 August 2026.

How Breath-Control Can Change Your Life: A Systematic Review on Psycho-Physiological Correlates of Slow Breathing

Zaccaro et al., Frontiers in Human Neuroscience (2018). Systematic review of 15 eligible slow-breathing studies in healthy participants.

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Effect of breathwork on stress and mental health: A meta-analysis of randomised-controlled trials

Fincham et al., Scientific Reports (2023). The authors reported promising effects while urging caution because of study quality and bias.

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The physiological effects of slow breathing in the healthy human

Russo, Santarelli and O’Rourke, Breathe (2017). Review of respiratory and cardiovascular mechanisms.

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Comparing Square, 4-7-8, and 6 Breaths-per-Minute Breathing Conditions

Marchant et al., Applied Psychophysiology and Biofeedback (2025). Controlled comparison of HRV, carbon dioxide, blood pressure, and mood in 84 students.

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Breathing exercises for stress

NHS practical guidance emphasizing comfortable, unforced breathing and regular practice.

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Stress: Use of Complementary Health Approaches

U.S. NCCIH overview of evidence and safety for relaxation and complementary practices.

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The Effect of Deep Breathing Exercise and 4-7-8 Breathing Techniques After Bariatric Surgery

Çolak and Arslan, Obesity Surgery (2023). A clinical study in a specific postoperative population, not general proof for all users.

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Editorial method

How a claim earns a place here.

Prefer primary and official sources

Systematic reviews, controlled trials, PubMed records, and public health guidance take priority over wellness marketing.

Match the claim to the study

A result in a specific clinical group is described as such. It is not generalized to every visitor or to a sixty-second session.

Keep uncertainty visible

Small samples, bias, inconsistent protocols, and missing direct evidence are part of the explanation—not fine print.

Recheck material changes

Pages carry a review date. New research changes the copy only when it materially changes what a visitor should understand.

Who, how, and why

Independent, AI-assisted, and not clinically reviewed.

The project owner sets the purpose, product decisions, and final direction. AI-assisted tools have helped with drafting and software implementation. Health-related statements are checked against the sources above, but the site has not been reviewed by a physician or other clinical expert.

The reason for publishing is practical: offer a quiet, low-friction timer and explain its limits more clearly than typical promotional copy. Read the project story or the dedicated safety guidance.