Every output names at least one verified PubMed source.
Fincham GW, Strauss C, Montero-Marin J, Cavanagh K. Effect of breathwork on stress and mental health: A meta-analysis of randomised-controlled trials. Sci Rep. 2023;13(1):432. PMID 36624160 Meta-analysis of randomised controlled trials of breathwork. · weight 1.0 · Self-reported stress was lower after breathwork than in controls, with small-to-moderate effects on mental health outcomes; trials were short and heterogeneous.
Zaccaro A, Piarulli A, Laurino M, et al. How breath-control can change your life: A systematic review on psycho-physiological correlates of slow breathing. Front Hum Neurosci. 2018;12:353. PMID 30245619 Systematic review of slow breathing (<10 breaths/min) in healthy individuals. · weight 1.0 · Slow breathing is associated with increases in heart-rate variability and respiratory sinus arrhythmia, markers of greater parasympathetic activity.
Limits: This timer paces you; it does not measure your physiology. The cited systematic review examined slow breathing in healthy people, and the meta-analysed trials were short.
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