Jahan I, Begum M, Akhter S, et al. Effects of alternate nostril breathing exercise on cardiorespiratory functions in healthy young adults. Ann Afr Med. 2021;20(2):69-77. doi:10.4103/aam.aam_114_20
In this study, Yoga-based ANB exercise for 1 month brought significant improvement in cardiorespiratory parameters (pulse, SBP, DBP, FVC, FEV1, and PEFR) in the study subjects.
Sinha AN, Deepak D, Gusain VS. Assessment of the effects of pranayama/alternate nostril breathing on the parasympathetic nervous system in young adults. J Clin Diagn Res. 2013;7(5):821-823. doi:10.7860/JCDR/2013/4750.2948
This study showed that the parasympathetic tone was enhanced appreciably in the participants. The observations of this study suggest that the yogic exercise of A.N.B. influences the parasympathetic nervous system significantly.