Under CopyrightHeyen, Nils B.Nils B.Heyen2022-03-1524.1.20182017https://publica.fraunhofer.de/handle/publica/41402510.24406/publica-fhg-414025This post is part of Bill of Health's symposium on Critical Studies of Citizen Science in Biomedical Research. Here, drawing upon interviews with self-trackers, Nils Heyen analyzes the different types of activities that self-trackers engage in and reflects on what kind of knowledge they produce. Background on the symposium is here.en303600blog post