Nasal breathing: Limited evidence of benefits in healthy individuals

Nasal breathing has been studied extensively, and while it has been shown to have some positive effects in respiratory patients, there is limited evidence to support its benefits in healthy individuals. Nasal breathing may help open up the airways in certain respiratory conditions, but for most people with normal respiratory function, it does not offer significant improvements in exercise capacity or performance. Some proponents have extrapolated claims about nasal breathing that are not supported by scientific evidence, leading to misconceptions about its effectiveness. It is important to differentiate between studies conducted in respiratory patients and the general healthy population when evaluating the benefits of nasal breathing.