The BC Generations follows a cohort of nearly 30,000 participants in British Columbia, Canada who volunteer their health information and biological samples to help researchers learn more about how environment, lifestyle and genes contribute to cancer and other chronic diseases. This initiative is part of the Canadian Partnership for Tomorrow’s Health; the project also studies five other regions: Alberta, Manitoba, Ontario, Quebec and Atlantic Canada. By combining this dataset with other across the country, researchers will be able to identify disease patterns with relatively rare diseases or rare exposures.