Аннотация:Introduction: Dysfunctional breathing is breathing patterns that do not correspond to the physiological needs of the body, provokes many poly-systemic symptoms. Dysfunctional breathing is experienced as a feeling of “difficulty in breathing”, which in the conditions of the COVID-19 pandemic may be similar to the symptoms of coronavirus infection (Taverne et al., 2021).Objectives: To examine the role of socio-demographic predictors in the prevalence of dysfunctional breathing in the Russian population during the COVID-19 pandemic.Methods: The author’s socio-demographic questionnaire, the Nijmegen Questionnaire (Van Dixhoorn, Duivenvoordent, 1985), the STAI (Spielberger et al., 1983), and the “Perceived Stress Scale-10” (Cohen, Kamarck, Mermelstein,1983) were used. The study was conducted online from April 27 to December 28, 2020. It was attended by 1,362 people from all regions of Russia (38.3 ±11.4 y.o.).Results: In men, the average values for NQ (11.19±774) are lower than among women (18.739.96, p=0.000). Persons with incomplete higher education have a higher score on NQ (N=103,NQ=20.44±11.8) than persons with higher education (N=1051,NQ= 17.40±9.63,p=0.048) and candidates/doctors of sciences (N=97,NQ= 15.34±11.20,p=0.005). There was also a connection between the severity of dysfunctional breathing and the level of income, which is associated with a negative correlation between income level and perception of stress (r=-0.215,p=0.000), state (r=-0.165,p=0.000), and trait anxiety (r=-0.127,p=0.000).Conclusions: The severity of dysfunctional breathing is associated with gender, income levels, and education, which can be used to identify a group of people who are most susceptible to the occurrence of dysfunctional breathing during the pandemic COVID-19. The study was supported by the Russian Science Foundation, project No.21-18-00624.Disclosure: The study was supported by the Russian Science Foundation, project No. 21-18-00624.Keywords: Covid-19 pandemic; dysfunctional breathing