Semmelweis Study – A Longitudinal Workplace Cohort Supporting the WHO Healthy Ageing Strategy

Issue

Population ageing and early functional decline pose major challenges to health systems across Europe. Despite advances in geroscience, there remains a critical gap between scientific evidence and the implementation of effective, population-level prevention strategies. The WHO/Europe Healthy Ageing Strategy (2026–2030) calls for integrated, evidence-based approaches to promote healthspan and resilience across the life course.

Description of the problem

Public health systems lack longitudinal, multidimensional data to identify modifiable determinants of unhealthy ageing and to design targeted interventions. In Hungary, high burdens of chronic disease, work-related stress, and premature functional decline highlight the need for scalable, prevention-oriented models embedded in real-world settings.

Results

The Semmelweis Study is a prospective longitudinal workplace cohort enrolling university employees aged ≥25 years, integrating questionnaire data, clinical assessments, and biospecimen analyses with repeated follow-up and linkage to national health databases. It captures key domains including physical and cognitive function, biological ageing, mental health, work stress, and vascular risk. Embedded within a workplace health promotion framework, it provides a platform to develop and evaluate targeted interventions.

Lessons

The Semmelweis Study demonstrates how longitudinal cohort infrastructures can bridge geroscience and public health practice. By integrating research with implementation, it enables identification of risk trajectories and supports development of workplace-based prevention strategies aligned with WHO priorities.

Key messages

• Bridging geroscience and policy requires integrated cohort platforms linking data, intervention, and implementation.

• The Semmelweis Study provides a scalable model for translating healthy ageing strategies into practice in Europe.