rumination, typically referred to as repetitive thought, includes prolonged and recurring adverse reflections on emotions and distressing previous occasions (Watkins, 2008). In distinction, fear signifies a sequence of ideas and adverse feelings regarding anticipated future occurrences (Borkovec, 1983). Both rumination and fear are intently associated and acknowledged as transdiagnostic elements, denoting their affiliation with varied psychological well being challenges (McEvoy et al., 2013; Zagaria et al., 2023). Their interaction highlights the need for efficient interventions that handle these points throughout numerous psychological well being situations.
One vital adverse consequence of repetitive adverse considering is its capacity to intensify and prolong durations of adverse temper, finally obstructing efficient problem-solving and hindering constructive behavioral adjustments (Watkins & Roberts, 2020). Consequently, it’s logical for sure psychological well being therapy methods to think about transdiagnostic elements, comparable to repetitive adverse considering, as addressing these parts might yield broad enhancements throughout varied psychological well being outcomes.
The final Mental Elf weblog addressing repetitive adverse considering in younger people was launched in 2017, elevating the query: what developments have occurred since then? In this weblog, I analyze a scientific evaluate and meta-analysis performed by Egan and colleagues (2024), which particularly targets fear and rumination as focal factors for interventions geared toward younger individuals grappling with a wide range of psychological well being points.

Rumination and fear can negatively influence a variety of psychological well being difficulties, highlighting their potential as targets for transdiagnostic intervention.
Research Methods for Analyzing Repetitive Negative Thinking
A standout side of this systematic evaluate and meta-analysis is that it was co-produced with a world cohort of younger people possessing lived experiences of hysteria, melancholy, and psychosis. These younger members, guided by lived expertise leaders, influenced each stage of the analysis, together with the formulation of search methods, the institution of the protocol, synthesizing insights, reviewing pertinent literature, and authoring the publication.
In April 2023, the authors performed a complete search throughout 4 databases to establish research that met the next standards:
- Included members with a imply age starting from 10 to 24 years.
- Were managed trials assessing interventions focusing on fear, rumination, or repetitive adverse considering as compared to varied management situations, encompassing each internet-based and face-to-face codecs.
- Utilized validated psychometric devices to measure fear, rumination, repetitive adverse considering, in addition to associated constructs comparable to nervousness, melancholy, suicidal tendencies, self-harm, or psychosis.
- Were revealed in peer-reviewed journals in both English or German.
Studies have been excluded if the interventions have been too broad or not particularly tailor-made to handle fear, rumination, or repetitive considering, or if the trials have been ongoing on the time of the evaluate.
One researcher undertook the preliminary screening of all articles, with a random 30% of articles subjected to double screening. Additionally, twelve articles have been included into the evaluate based mostly on references from a previous systematic evaluate (Bell et al., 2023).
The danger of bias was evaluated utilizing the Cochrane Risk of Bias Tool V.2 (Sterne et al., 2019), with nearly all of articles exhibiting some issues relating to bias.
For the meta-analysis, a random results mannequin was carried out to mixture impact sizes (Hunter-Schmidt g) of between-group results throughout outcomes associated to fear, rumination, repetitive adverse considering, nervousness, and melancholy. A Robust Bayesian meta-analysis was additionally carried out (RoBMA g) to present further assist for the random results mannequin, successfully accounting for potential publication bias.
Significant Findings on Mental Health Interventions
In complete, sixteen articles have been included within the evaluate, with a majority of research originating from the UK and Europe (38%). The participant demographics predominantly consisted of females (79%) and younger adults (81%). Among the research, twenty totally different interventions have been analyzed, with probably the most ceaselessly employed being Rumination Focused Cognitive Behaviour Therapy (RFCBT), accounting for 25% of the interventions. Other notable interventions included:
- Repetitive adverse thinking-specific Cognitive Behavioural Therapy (CBT)
- Meta-cognitive remedy
- Working reminiscence coaching
- Acceptance and Commitment Therapy (ACT) tailor-made for repetitive adverse considering.
Impact on Worry, Rumination, and Repetitive Negative Thinking
Strong proof was recognized, revealing a small to average impact measurement for the effectiveness of interventions focusing on repetitive adverse considering (g(Hunter-Schmidt) = −0.51; g(RoBMA) = −0.50) in addition to for CBT (g(Hunter-Schmidt) = −0.42 to −0.44; g(RoBMA) = −0.34 to −0.41) in lowering repetitive adverse considering.
Interventions led by therapists demonstrated a bigger impact than self-directed methods. The authors noticed robust proof suggesting that sure therapist-led interventions might outperform others, though they may not specify which varieties have been superior due to an absence of proof and the heterogeneity among the many included therapist-led interventions.
Effects on Anxiety Levels
Evidence helps the effectiveness of particular interventions geared toward repetitive adverse considering in lowering nervousness ranges. It was prompt that meta-cognitive remedy had a very vital affect on assuaging repetitive adverse considering (g(Hunter-Schmidt) = −1.34; g(RoBMA) = -0.42). However, the authors indicated that one examine was skewing the outcomes, necessitating additional examination. Therapist-led interventions once more confirmed larger results in contrast to self-help methods.
Influence on Depression Outcomes
The evaluation revealed a medium to robust impact general for interventions focusing on repetitive adverse considering in relation to melancholy. There was significantly robust assist for the impact of CBT on assuaging signs of melancholy (g(Hunter-Schmidt) = −0.43; g(RoBMA) = −0.41). Once extra, therapist-led interventions yielded a larger impact than self-help approaches. Interestingly, longer interventions (e.g., these exceeding 2 hours in complete) have been additionally discovered to be simpler than medium and quick interventions. However, there was inadequate knowledge to confirm any variations between the varied varieties of interventions.

This meta-analysis offered robust assist for the effectiveness of interventions focusing on repetitive adverse considering on nervousness, melancholy, and associated points, underscoring its potential as a transdiagnostic goal.
Key Conclusions from the Review
The authors concluded that the proof signifies that interventions particularly geared toward lowering adverse considering are efficient in assuaging nervousness and melancholy amongst younger people. It is usually recommended that longer interventions, as opposed to these lasting lower than 2 hours, are probably the most helpful. While findings point out that therapist-led interventions have a tendency to produce bigger results than self-help methods, additional analysis is crucial to discover this side in larger depth.
The youth with lived expertise who contributed to the event of the evaluate emphasised that interventions specializing in repetitive adverse considering seem to be helpful. However, they famous the significance of contemplating cultural contexts, as totally different interventions could also be extra appropriate for people in sure areas in contrast to others.

Evidence means that therapist-led interventions focusing on repetitive adverse considering are simpler than self-help methods for nervousness and melancholy in younger people; nonetheless, further analysis is required.
Strengths and Limitations of the Research
A big power of this analysis lies in its co-production with younger people who possess related lived experiences. Furthermore, these younger contributors hailed from a wide range of nations and have been concerned in each part of the analysis. This involvement is essential, as younger people have a proper to take part in choices that will influence their lives (Lundy, 2007).
This analysis builds upon a earlier evaluate (Bell et al., 2023) by increasing key parts, comparable to decreasing the age vary of curiosity, together with problems with self-harm, suicide, and psychosis alongside nervousness and melancholy, and involving younger individuals who might not meet scientific symptom thresholds. This highlights the crucial significance of early intervention and preventive measures, that are important for making certain higher psychological well being outcomes and cultivating expertise that foster long-term psychological well-being (McCorry & Mei, 2018).
The pre-registration of the examine protocol with PROSPERO, together with strict adherence to PRISMA pointers and the Cochrane Risk of Bias Tool, signifies that the examine was performed and reported following finest practices, enhancing transparency and rigor within the analysis course of.
Additionally, there was no restriction on publication dates, main to an intensive evaluate of current literature and minimizing the potential for publication-date bias. However, the exclusion of gray literature, dissertations, and unpublished research might have narrowed the pool of accessible analysis and elevated the chance of publication bias. Nonetheless, unpublished analysis usually includes a small proportion of critiques and might have minimal influence on general findings (Hartling et al., 2017).
The authors acknowledge a number of limitations within the proof introduced on this evaluate, together with:
- The restricted variety of research assembly the inclusion standards, which meant that the causal mechanisms underlying the effectiveness of the interventions couldn’t be explored as initially meant.
- Most research focused on nervousness and melancholy, with restricted out there analysis specializing in self-harm, suicide, and psychosis, which have been throughout the scope of the evaluate.
- Constraints on the generalizability of findings, on condition that the inhabitants within the included research was predominantly university-aged, with an over-representation of examine populations from the Global North. Since roughly 90% of younger individuals globally reside within the Global South (UNICEF, 2025), this creates a big hole in understanding the effectiveness of those interventions for younger people.
While these limitations pertain to the analysis proof, they don’t replicate shortcomings within the methodology of this particular evaluate, which was typically strong. However, the authors famous that they excluded CBT interventions that included parts addressing repetitive adverse considering, which can have resulted in some proof being ignored on this evaluate.

This is a sturdy systematic evaluate and meta-analysis that was co-produced with younger people who possess related lived expertise and have been concerned in all phases of the analysis.
Practical Implications for Mental Health Interventions
The findings of this evaluate underscore the need of early intervention and preventive measures in addressing younger individuals’s psychological well being, in addition to the importance of specializing in transdiagnostic elements like repetitive adverse considering. If supported by potential proof that investigates the causal mechanisms behind the effectiveness of those interventions, enhancing repetitive adverse considering might considerably enhance outcomes for younger people dealing with a wide range of psychological well being challenges. This strategy might lead to a far-reaching constructive influence on younger individuals’s psychological well being, which, when approached from a preventive and early intervention standpoint, might alleviate the pressure on specialised companies sooner or later.
Recent calls have been made for built-in fashions of care that handle transdiagnostic signs and elements to higher assist younger individuals’s psychological well being (Colizzi et al., 2020). Such transdiagnostic interventions, which transcend conventional diagnostic boundaries, might assist mitigate the rising pressures on statutory companies. By additional analyzing and focusing on underlying processes and signs that span a number of psychological well being challenges, we will shift away from the slender focus of treating one prognosis at a time. After all, transdiagnostic approaches replicate “the complexity, dimensionality, and comorbidity that is the norm in clinical practice” (Dalgleish et al., 2020, p.179).
It is crucial to acknowledge that smaller impact sizes, as demonstrated on this analysis, are anticipated within the context of prevention and early intervention amongst non-clinical samples. This is primarily due to the truth that much less pronounced adjustments are usually noticed in these populations, the place younger people report fewer or much less extreme difficulties in contrast to scientific samples. The authors of this examine suggest a number of analysis gaps and areas for future investigation, together with acquiring proof from nations within the Global South, exploring a broader array of psychological outcomes, and figuring out which particular interventions geared toward repetitive adverse considering are best for various people. Such efforts might contain longitudinal combined strategies research, significantly in prevention and early intervention settings, and are important for advancing this rising space of focus to optimally assist younger people.

Transdiagnostic interventions that transcend conventional diagnostic boundaries might assist alleviate among the growing burden on statutory companies, thereby enhancing entry to psychological healthcare.
Disclosure of Interests
None.
References and Resources
Primary Research Article
Egan, S. J., Greene, D., Callaghan, T., Raghav, S., Funk, J., Badenbach, T., … & Kopf-Beck, J. (2025). Worry and rumination as a transdiagnostic goal in younger individuals: a co-produced systematic evaluate and meta-analysis. Cognitive Behaviour Therapy, 54(1), 17-40.
Additional References
Bell, I. H., Marx, W., Nguyen, Ok., Grace, S., Gleeson, J., & Alvarez-Jimenez, M. (2023). The impact of psychological therapy on repetitive adverse considering in youth melancholy and nervousness: A meta-analysis and meta-regression. Psychological Medicine, 53(1), 6-16.
Borkovec, T. D., Robinson, E., Pruzinsky, T., & DePree, J. A. (1983). Preliminary exploration of fear: Some traits and processes. Behaviour Research and Therapy, 21(1), 9-16.
Colizzi, M., Lasalvia, A., & Ruggeri, M. (2020). Prevention and early intervention in youth psychological well being: is it time for a multidisciplinary and trans-diagnostic mannequin for care?. International Journal of Mental Health Systems, 14, 1-14.
Dalgleish, T., Black, M., Johnston, D., & Bevan, A. (2020). Transdiagnostic approaches to psychological well being issues: Current standing and future instructions. Journal of Consulting and Clinical Psychology, 88(3), 179.
Hartling, L., Featherstone, R., Nuspl, M., Shave, Ok., Dryden, D. M., & Vandermeer, B. (2017). Grey literature in systematic critiques: a cross-sectional examine of the contribution of non-English studies, unpublished research, and dissertations to the outcomes of meta-analyses in child-relevant critiques. BMC Medical Research Methodology, 17, 1-11.
Lundy, L. (2007). ‘Voice’ will not be sufficient: conceptualising Article 12 of the United Nations Convention on the Rights of the Child. British Educational Research Journal, 33(6), 927-942.
McEvoy, P. M., Watson, H., Watkins, E. R., & Nathan, P. (2013). The relationship between fear, rumination, and comorbidity: Evidence for repetitive adverse considering as a transdiagnostic assemble. Journal of Affective Disorders, 151(1), 313-320.
Moulds, M. (2017). Targeting unhelpful repetitive adverse considering in younger individuals to stop nervousness and melancholy. The Mental Elf.
Sterne, J. A., Savović, J., Page, M. J., Elbers, R. G., Blencowe, N. S., Boutron, I., … & Higgins, J. P. (2019). RoB 2: a revised software for assessing danger of bias in randomised trials. BMJ, 366.
UNICEF. Adolescent demographics. [Online]. Available https://data.unicef.org/topic/adolescents/overview/, Accessed 28 Jan 2025.
Watkins, E. R. (2008). Constructive and unconstructive repetitive thought. Psychological Bulletin, 134(2), 163.
Watkins, E. R., & Roberts, H. (2020). Reflecting on rumination: Consequences, causes, mechanisms and therapy of rumination. Behaviour Research and Therapy, 127, 103573.
Zagaria, A., Ballesio, A., Vacca, M., & Lombardo, C. (2023). Repetitive adverse considering as a central node between psychopathological domains: A community evaluation. International Journal of Cognitive Therapy, 16(2), 143-160.