Alone and under pressure: the transdiagnostic role of loneliness, stress, and psychological inflexibility in university students

IntroductionUniversity students face growingmental health challenges that demand both clinical and population-level strategies. Psychological inflexibility, perceived stress, and loneliness have been proposed as key transdiagnostic factors influencing mental health, yet their interrelationships rema...

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Main Authors: Silvia L. Vaca-Gallegos, Mateo Peñaherrera-Aguirre, Daniela Batallas, Belén M. Paladines-Costa, Carla López-Nuñez, Pablo Ruisoto
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Public Health
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Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2025.1642529/full
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author Silvia L. Vaca-Gallegos
Mateo Peñaherrera-Aguirre
Daniela Batallas
Belén M. Paladines-Costa
Carla López-Nuñez
Pablo Ruisoto
Pablo Ruisoto
Pablo Ruisoto
author_facet Silvia L. Vaca-Gallegos
Mateo Peñaherrera-Aguirre
Daniela Batallas
Belén M. Paladines-Costa
Carla López-Nuñez
Pablo Ruisoto
Pablo Ruisoto
Pablo Ruisoto
author_sort Silvia L. Vaca-Gallegos
collection DOAJ
description IntroductionUniversity students face growingmental health challenges that demand both clinical and population-level strategies. Psychological inflexibility, perceived stress, and loneliness have been proposed as key transdiagnostic factors influencing mental health, yet their interrelationships remain unclear.MethodsWe conducted a cross-sectional survey among 7,905 students from 11 Ecuadorian universities. Validated instruments were used to assess psychological inflexibility (AAQ-II), perceived stress (PSS), loneliness (UCLA-3), anxiety and depression (PHQ-4), and life satisfaction (LSQ). Data were analysed using Sequential Canonical Analysis to examine direct and indirect associations among predictors and outcomes.ResultsAnalysis revealed a structured cascade: psychological inflexibility predicted perceived stress, which in turn predicted loneliness. All three variables contributed independently to mental health outcomes. Loneliness was the strongest predictor of anxiety, depression, and reduced life satisfaction, supporting its role as a chronic social stressor. Together, these factors explained 45% of the variance in a higher-order mental health factor and 35% of the variance in life satisfaction.DiscussionFindings underscore the need for integrated strategies in higher education that address both individual vulnerability and social isolation. Framed within Rose’s distinction between the causes of individual cases and the causes of population incidence, results highlight loneliness as a central target for preventive and clinical interventions.
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spelling doaj-art-ab9fe251ca3c442ea4ff045966efb6912025-08-20T03:41:39ZengFrontiers Media S.A.Frontiers in Public Health2296-25652025-08-011310.3389/fpubh.2025.16425291642529Alone and under pressure: the transdiagnostic role of loneliness, stress, and psychological inflexibility in university studentsSilvia L. Vaca-Gallegos0Mateo Peñaherrera-Aguirre1Daniela Batallas2Belén M. Paladines-Costa3Carla López-Nuñez4Pablo Ruisoto5Pablo Ruisoto6Pablo Ruisoto7Department of Psychology, Universidad Técnica Particular de Loja, Loja, EcuadorSchool of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ, United StatesLaboratory of Social Cognitive Neuroscience, Department of Psychobiology and IDOCAL, University of Valencia, Valencia, SpainDepartment of Psychology, Universidad Técnica Particular de Loja, Loja, EcuadorDepartment of Personality, Assessment and Psychological Treatments, School of Psychology, University of Seville, Seville, SpainDepartment of Health Sciences, Public University of Navarre, Pamplona, SpainNavarra Institute for Health Research (IdiSNA), Pamplona, SpainInstitute for Advanced Social Research (I-COMMUNITAS), Pamplona, SpainIntroductionUniversity students face growingmental health challenges that demand both clinical and population-level strategies. Psychological inflexibility, perceived stress, and loneliness have been proposed as key transdiagnostic factors influencing mental health, yet their interrelationships remain unclear.MethodsWe conducted a cross-sectional survey among 7,905 students from 11 Ecuadorian universities. Validated instruments were used to assess psychological inflexibility (AAQ-II), perceived stress (PSS), loneliness (UCLA-3), anxiety and depression (PHQ-4), and life satisfaction (LSQ). Data were analysed using Sequential Canonical Analysis to examine direct and indirect associations among predictors and outcomes.ResultsAnalysis revealed a structured cascade: psychological inflexibility predicted perceived stress, which in turn predicted loneliness. All three variables contributed independently to mental health outcomes. Loneliness was the strongest predictor of anxiety, depression, and reduced life satisfaction, supporting its role as a chronic social stressor. Together, these factors explained 45% of the variance in a higher-order mental health factor and 35% of the variance in life satisfaction.DiscussionFindings underscore the need for integrated strategies in higher education that address both individual vulnerability and social isolation. Framed within Rose’s distinction between the causes of individual cases and the causes of population incidence, results highlight loneliness as a central target for preventive and clinical interventions.https://www.frontiersin.org/articles/10.3389/fpubh.2025.1642529/fulllonelinessperceived stresspsychological inflexibilitymental healthlife satisfactiontransdiagnostic model
spellingShingle Silvia L. Vaca-Gallegos
Mateo Peñaherrera-Aguirre
Daniela Batallas
Belén M. Paladines-Costa
Carla López-Nuñez
Pablo Ruisoto
Pablo Ruisoto
Pablo Ruisoto
Alone and under pressure: the transdiagnostic role of loneliness, stress, and psychological inflexibility in university students
Frontiers in Public Health
loneliness
perceived stress
psychological inflexibility
mental health
life satisfaction
transdiagnostic model
title Alone and under pressure: the transdiagnostic role of loneliness, stress, and psychological inflexibility in university students
title_full Alone and under pressure: the transdiagnostic role of loneliness, stress, and psychological inflexibility in university students
title_fullStr Alone and under pressure: the transdiagnostic role of loneliness, stress, and psychological inflexibility in university students
title_full_unstemmed Alone and under pressure: the transdiagnostic role of loneliness, stress, and psychological inflexibility in university students
title_short Alone and under pressure: the transdiagnostic role of loneliness, stress, and psychological inflexibility in university students
title_sort alone and under pressure the transdiagnostic role of loneliness stress and psychological inflexibility in university students
topic loneliness
perceived stress
psychological inflexibility
mental health
life satisfaction
transdiagnostic model
url https://www.frontiersin.org/articles/10.3389/fpubh.2025.1642529/full
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