Early life is an important window of opportunity to improve health across the full lifecycle. Exposure to stressors just before or during pregnancy or during early childhood leads to developmental adaptations, which subsequently affect life course and disease risk. Optimising early-life conditions has the yet unfulfilled potential to improve life course health trajectories for individuals themselves and also their offspring through transgenerational effects. Therefore, novel strategies for optimising early life will help to maximize the human developmental potential for current and future European generations. Prospective cohort studies starting from pregnancy or childhood provide the opportunity to study the effects of early-life stressors in relation to lifecycle health trajectories, and their potential for targeted prevention or intervention strategies. Europe has a strong tradition in population-based prospective cohort studies from pregnancy or childhood onwards. These cohorts are invaluable resources to identify a wide range of early-life stressors in connection with individual biological, developmental and health trajectory variations related to the onset and evolution of non-communicable diseases.
The LifeCycle Project (www.lifecycle-project.eu) is designed to establish the EU Child Cohort Network, which brings together existing, successful pregnancy and child cohorts and biobanks, by developing a governance structure taking account of national and European ethical, legal and societal implications, a shared data-management platform and data-harmonisation strategies. LifeCycle enriches this EU Child Cohort Network by generating new integrated data on early life stressors related to socio-economic, migration, urban environment and life-style determinants, and capitalise on these data by performing hypothesis-driven research on early life stressors influencing cardio-metabolic, respiratory and mental health trajectories during the full lifecycle, and the underlying epigenetic mechanisms. LifeCycle translates these results into recommendations for targeted strategies and personalised prediction models to improve health trajectories for current and future Europeans generations by optimising their earliest phase of life. To strengthen this long-term collaboration, LifeCycle organises yearly international meetings open to pregnancy and child cohort researchers, introduces a Fellowship Training Programme for exchange of junior researchers between European pregnancy or child cohorts, and develops e-learning modules for researchers performing life course health studies. Ultimately, LifeCycle will lead to a unique sustainable EU Child Cohort Network, and provide recommendations for targeted prevention strategies by identification of novel markers of early life stressors related to health trajectories throughout the lifecycle.