Here’s a link to the paper:
https://www.nature.com/articles/s41598-023-49279-8
Here’s the link to the other paper referenced:
https://www.thebreathingdiabetic.com/mcclain-et-al-2017
Article Citation:
Fincham GW, Strauss C, Cavanagh K. Effect of coherent breathing on mental health and wellbeing: a randomised placebo-controlled trial. Sci Rep. 2023 Dec 13;13(1):22141. doi: 10.1038/s41598-023-49279-8. PMID: 38092805; PMCID: PMC10719279.