In this episode, we talk to Emma Whitfield, who is a PhD student in the Institute of Epidemiology and Health Care at University College London.Title of paper: Diagnostic windows in non-neoplastic diseases: a systematic reviewAvailable at: https://doi.org/10.3399/BJGP.2023.0044Improving timeliness of diagnosis is imperative across disease types. This review identified that for a range of nonneoplastic conditions healthcare use starts to increase in the time before diagnosis. For some conditions, this increase may first start to occur many years before diagnosis. Further research is needed to produce accurate estimates of how much earlier diagnosis may be possible.