There is much confusion about healthy breathing. Business can not patent it.
Scientific research is based on using mice, monkeys, rats, cats and dogs etc.
None of which breathe like healthy humans. Three clinical studies including over 15,000 participants spanning 30 years gave data supporting that the most significant factor in health and longevity was how well you breathe. This points out there is a significant study that helps drive the point home about the importance of proper breathing. This study shows the importance of longitudinal studies as opposed to cross sectional ones. The von Ardenne study focused on oxygen's relationship in to all major categories of illness.