Unilateral breathing through a single nostril produces measurable physiological changes
Multiple studies demonstrate that unilateral nostril breathing produces measurable physiological and neurological changes, including alterations in heart rate variability, autonomic activity, blood pressure, intra-ocular pressure, and brain cortical oscillations.
The retrieved papers consistently demonstrate that unilateral nostril breathing (or natural nasal dominance) leads to significant, measurable physiological, autonomic, hemodynamic, and neurological changes across diverse participant groups. Therefore, the claim is well supported by the literature.
Malhotra V, Srivastava R, Parasuraman P, Javed D, Wakode S, Thakare A, Sampath A, Kumari A. Immediate autonomic changes during right nostril breathing and left nostril breathing in regular yoga practitioners.. 2022. https://doi.org/10.4103/jehp.jehp_343_22
Demonstrates measurable autonomic and heart rate variability changes during right and left nostril breathing.
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Vanutelli ME, Grigis C, Lucchiari C. Breathing Right… or Left! The Effects of Unilateral Nostril Breathing on Psychological and Cognitive Wellbeing: A Pilot Study.. 2024. https://doi.org/10.3390/brainsci14040302
Shows that unilateral nostril breathing differentially affects psychological wellbeing, stress reduction, and cognitive focus.
Frohlich AB, Frohlich F, Sklerov M. Neuronal oscillations and functional connectivity of paced nostril breathing: A high-density EEG study.. 2025. https://doi.org/10.1371/journal.pone.0316125
Finds that unilateral and alternate nostril breathing produce measurable changes in brain network oscillations and cortical connectivity via EEG.
Kulkarni A, Kamath Y, Shetty L, Kuzhuppilly NIR. The Effect of Specific Techniques of Nasal Breathing [Pranayama] on Intra-Ocular Pressure in Normal Individuals, a Randomized Trial.. 2022. https://doi.org/10.2147/opth.s389495
Reports that specific right and left nostril breathing techniques lead to significant, measurable reductions in intra-ocular pressure.
Sinha S, Mittal S, Bhat S, Baro G. Effect of Nasal Dominance on Pulmonary Function Test and Heart Rate: A Pilot Study.. 2021. https://doi.org/10.4103/ijoy.ijoy_115_20
Observes that natural nasal dominance significantly alters pulmonary function parameters and resting heart rate.
Pai V, Borkar N, Nirvan M, Verma M. Immediate Hemodynamic Changes during Slow Uninostril and Alternate Nostril Breathing Patterns in Normotensive Adults.. 2024. https://doi.org/10.4103/ijoy.ijoy_115_24
Induces immediate, measurable hemodynamic changes such as decreased blood pressure following specific uninostril breathing patterns.
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