The Journal PLOS ONE has published a systematic review conducted by femu entitled: "Biological and health-related effects of weak static magnetic fields (≤ 1 mT) in humans and vertebrates: A systematic review”. The aim of this review was to systematically analyze and evaluate possible effects of weak static magnetic fields on biological functioning and to provide an update on the current state of research. Eleven studies fulfilled the eligibility criteria and were included in this review. All included studies were animal studies as no human studies were among the eligible articles. Overall, the available evidence from the literature reviewed is not sufficient to draw a conclusion for biological and health-related effects of weak static magnetic fields. We encourage further and more systematic research in this area. Any new studies should particularly address effects on biological functioning in humans to evaluate whether static magnetic fields pose a risk to human health.