Children who breathe through an open mouth have a strong tendency to experience cognitive disorders and problems with memory, concentration, attention, and learning ability.
In a 2013 study in which 48 children had complete ear, nose, and throat examinations, results showed that children with enlarged adenoids experienced greater learning difficulties than those with normal adenoids. Likewise, a 2015 study from the Faculties of Dentistry at Havana and Aden Universities found that children with excessive daytime sleepiness were almost 10 times more likely to have learning difficulties.
Triana, Bárbara Elena García, Ahlam Hibatulla Ali, and Ileana Bárbara Grau León. “Mouth breathing and its relationship to some oral and medical conditions: physiopathological mechanisms involved.” Revista Habanera de Ciencias Médicas 15, no. 2 (2016): 200-212.
http://scielo.sld.cu/pdf/rhcm/v15n2/rhcm08215.pdf
Fensterseifer, Giovana Serrão, Oswaldo Carpes, Luc Louis Maurice Weckx, and Viviane Feller Martha. “Mouth breathing in children with learning disorders.” Brazilian journal of otorhinolaryngology 79, no. 5 (2013): 620-624.
https://pubmed.ncbi.nlm.nih.gov/24141679/
Jefferson Y. Mouth breathing: adverse effects on facial growth, health, academics, and behavior. Gen Dent 2010;58:18–25. https://pubmed.ncbi.nlm.nih.gov/20129889/
