Eco-anxiety, characterised by persistent or intense anxiety about environmental crises, is a growing global mental health concern. Yet, the design, effectiveness and implementation of interventions specifically targeting eco-anxiety lack a comprehensive synthesis. This systematic review examined peer-reviewed studies published between 2010 and 2025 that reported on interventions designed to prevent, manage or reduce eco-anxiety or closely related climate-related psychological distress, defined as sustained emotional, cognitive or functional impairment linked to environmental change. Searches were conducted across CINAHL, PsycINFO, MEDLINE, Scopus, ProQuest Environmental Science Collection and the Cochrane Central Register of Controlled Trials. Twenty-two studies met the inclusion criteria from an initial 1,259 records. Most were published between 2017 and 2025, primarily in high-income Western countries, and encompassed a broad range of interventions including educational programmes, messaging strategies, cognitive-behavioural and mindfulness-based therapies, group resilience training, nature-based approaches and community participation initiatives. Cognitive-behavioural and mindfulness-based interventions showed the most consistent positive findings within the current evidence base, including repeated reports of reductions in eco-anxiety or climate-related distress and, in some studies, maintenance of improvements at short-term follow-up. Educational and community-focused interventions were more likely to be associated with emotional engagement, agency and peer support rather than solely increasing knowledge, with some approaches increasing concern or emotional engagement without reducing distress. However, substantial heterogeneity in outcome measures, short intervention durations and limited follow-up periods constrained comparison across studies and assessment of longer-term impact. Implementation challenges included issues of scalability, cultural relevance and the predominance of researcher-led, time-bound interventions. Within the limited literature to date, interventions integrating emotional resilience training with group or community engagement appeared to show promising findings. Further research using standardised outcome measures, longer follow-up periods and more culturally diverse and participatory designs is required to strengthen the evidence base and inform scalable, context-sensitive responses to eco-anxiety.

Anhedonia, the diminished interest and/or capacity for pleasure, is increasingly recognised as a transdiagnostic symptom that spans mood, anxiety, neurodevelopmental and psychotic disorders. Rather than being specific to any single disorder, anhedonia reflects core dysfunction in reward processing and affect regulation, with broad implications for social and functional outcomes.

Behaviour-change interventions unfold in social systems where people learn from others. We develop a stylised agent-based model to examine how four canonical social learning rules – conformist transmission, informational prestige-biased copying, payoff-biased copying and random copying – shape the impact of a simple seeding intervention. Two arms evolve under identical conditions and learning rules, differing only in initial adoption: both start with exactly 5% baseline adopters and the treatment arm additionally seeds 20% of the remaining non-adopters, yielding an exact 25% vs 5% contrast at $t = 0$. Across homogeneous populations, 70/30 mixed ecologies and sweeps over the share of payoff-biased learners, we track adoption trajectories and treatment–control lift; we also vary payoff parameters, prestige informativeness and conformist thresholds in robustness analyses. We find that the same seeding intervention can stall, drift or cascade depending on the learning ecology. In the baseline specification, conformist dynamics exhibit threshold effects that erase treatment gains, prestige-biased and random copying can preserve positive final lift when diffusion remains incomplete and payoff-biased copying mainly changes the diffusion regime rather than preserving large end-point gaps. Robustness checks show that negative payoff premia suppress diffusion, weak or noisy payoff signals can generate treatment advantages, prestige effects depend on how informative prestige is and conformist treatment effects are concentrated in narrow threshold-boundary regions. These results motivate policy heuristics that evaluate interventions relative to local diffusion potential, make successful outcomes visible when payoff cues matter and tailor seeding to the prevailing mix of learning rules.

Adolescent involvement in mental health prevention research remains limited in low-resource settings. This study examined the feasibility, acceptability, processes and perceived impacts of adolescent advisory groups (AAGs) within the ALIVE research in Colombia, Nepal and South Africa. Using a convergent mixed-methods design, we analysed data collected between October 2022 and August 2025 using surveys with adolescents (t1: n = 33; t2: n = 26), focus group discussions (n = 6 with adolescents; n = 2 with caregivers), interviews (n = 8 with adolescents; n = 5 with facilitators), process documents (n = 58) and post-session feedback (n = 7). Participation was highly valued by most adolescents, who were motivated by altruism, peer connection, skill development and project incentives. Most adolescents strongly agreed they could express their views freely (t1: 79%; t2: 81%) and felt listened to (t1:76%; t2: 81%, respectively). Participants reported experiences of trust, confidence and collective agency; challenges included stigma, unequal participation and logistical barriers. Facilitators’ relational and adaptive support appeared central to sustaining engagement. Adolescent members contributed in important ways to the ALIVE research. Adolescent involvement in prevention research in low-resource settings is feasible and can be experienced by participants as valuable.

Schools play a crucial role in supporting adolescent mental health, especially in low- and middle-income countries (LMICs), where young people face structural and societal challenges. This study explores the feasibility and acceptability of the Health Action in Schools for a Thriving Adolescent Generation (HASHTAG), a multilevel intervention for at-risk adolescents aged 13–14 in South Africa. HASHTAG includes two components: thriving environment in schools (TES), a whole-school approach, and thriving together (TT), a classroom-based programme. Using a mixed-methods design, we assessed feasibility in two Khayelitsha schools through implementation measures (attendance, fidelity and acceptability), focus groups (n = 46), and pre-post surveys (n = 231). Despite COVID-19 disruptions, the intervention was implemented with high fidelity and met all progression criteria. Students and staff found HASHTAG relevant and engaging, particularly appreciating the TT sessions delivered by external facilitators. The TES teacher module also created space for reflection and self-care. Some teachers suggested improved sensitisation could strengthen the programme’s impact. Although no significant changes were observed in quantitative outcomes, no harms were reported. These findings support the feasibility and acceptability of HASHTAG and highlight the need for a full-scale trial to evaluate its potential impact on adolescent mental health in LMIC settings.

Professional burnout syndrome represents a significant occupational hazard within European primary care physicians, impacting their well-being, quality of care, and the sustainability of healthcare systems. This joint European Psychiatric Association (EPA) and the World Organization of National Colleges, Academies and Academic Associations of General Practitioners/Family Physicians- Europe Region (WONCA Europe) viewpoint focuses specifically on primary care physicians, contrasts their risk profile with other specialties, and outlines actionable, system-level recommendations for policymakers, provider organizations, and professional associations. Evidence indicates a wide range in professional burnout syndrome prevalence, influenced by assessment methodologies and specific national contexts. The syndrome manifests through emotional exhaustion, depersonalization, and reduced personal accomplishment, often accompanied by secondary psychological and physical symptoms. A multitude of interacting risk factors at the individual, interpersonal, and organizational levels contribute to its development. Effective mitigation strategies necessitate a multi-pronged approach encompassing individual coping mechanisms and systemic organizational changes aimed at alleviating workload, enhancing autonomy, and fostering supportive work environments.

When do politicians debate each other in parliament, and when do they prefer to avoid discourse? While existing research has shown MPs to unilaterally leverage the dialogical nature of legislative debates to their advantage, the circumstances facilitating actual discursive interaction have so far received less attention. We introduce a new framework to study the emergence of discourse in political debates. Applying this framework, we expect ideological differences and government–opposition dynamics to shape politicians' choices about seeking or avoiding discourse. To test these hypotheses, we draw on an original dataset of all 14,595 attempted and successful interventions (Zwischenfragen) – extraordinary, voluntary discursive exchanges between speakers and MPs in the audience – in the German Bundestag (1990–2020), extracted using an annotation pipeline developed specifically for this study. We find that MPs separated by diverging preferences seek discourse with one another more often than their ideologically aligned counterparts. At the same time, these exact attempts do less frequently result in discursive interactions. When considering government–opposition dynamics in this process, we observe very similar patterns: Attempts to initiate discourse are particularly common among opposition MPs facing government speakers, and we find tentative evidence suggesting that government actors are most likely to avoid these invitations to discursive interaction. Our findings have important implications for our understanding of elite behaviour in public environments.

People with tuberculosis (TB) and TB survivors are at increased risk for mental health (MH) conditions. Better management of conditions like depression can improve adherence to TB treatment, and integrating MH care into TB treatment may reduce the MH treatment gap and improve outcomes. This qualitative study explored design characteristics for integrated MH-TB care in Pune, India. Data collection involved in-depth interviews (n = 25) with TB survivors with lived experience of MH conditions, their family members, and TB and MH providers. Data collection and analysis were guided by the Consolidated Framework for Implementation Research, and journey maps illustrated patient experiences. Participants shared suggestions for integrated care models, advantages and barriers to integration, intervention delivery agents, and local perceptions of MH conditions. Barriers included limited awareness about MH and perspectives about MH treatment, which were limited to consuming medication. Suggestions for integrated interventions included raising awareness about MH conditions and existing MH services among TB providers, regular MH screening and counseling for people with TB, and engaging TB survivors to share their experiences with patients in group settings. These insights highlight the importance of working with people with lived experience and understanding patient journeys to inform intervention implementation and sustainability.