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Children of the 90s is a multi-generational study that’s unique for the breadth and depth of its data, and the information and samples you've given us have already informed more than 2,000 research papers on some of the most pressing health questions of our time, including childhood obesity, air pollution and mental health.
It’s never too late to get back in touch, however long it's been since you last took part, and you can choose how little or how much to get involved.
Read about how we're contributing to vital COVID-19 research