TRAILS is a prospective cohort study, which started in 2001. Since then, a group of 2500 young people from the Northern part of the Netherlands has been closely monitored in order to chart and explain their mental, physical, and social development. These TRAILS participants have been measured every two to three years, by means of questionnaires, interviews, and all kinds of tests. By now, we have collected information that spans the total period from preadolescence up until young adulthood.


On this website you will find information about the organization and objectives of TRAILS, the involved research institutions and information about researchers, publications and a page especially for TRAILS employees.


Do you have any suggestions or comments on our website, please let us know via or through contact.

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Tracking the next generation

New TRAILS research

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