Breathing Through the Mouth may Play a role in Acute Asthma Exacerbations

Breathing Through the Mouth may Play a role in Acute Asthma Exacerbations

Breathing through the nose has a protective influence against exercise induced asthma. In a study of a small group of people, subjects when wearing a nose clip to force breathing through the mouth perceived more difficulty breathing in.  

Enforced oral breathing causes a decrease in lung function in mild asthmatic subjects at rest, initiating asthma symptoms in some. Oral breathing may play a role in the pathogenesis of acute asthma exacerbations.  

Hallani M, Wheatley JR, Amis TC. Enforced mouth breathing decreases lung function in mild asthmatics. Respirology. 2008 Jun;13(4):553-8. https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1440-1843.2008.01300.x

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