Screening & diagnostics
What the evidence says about screening tests and diagnostic scans, and when they help versus when they lead to overdiagnosis.
Full-body MRI scans like Prenuvo promise early cancer detection. Here's what the data says about incidentalomas, overdiagnosis, and whether you should get one.
A nephrologist breaks down whether continuous glucose monitors help non-diabetics, what the evidence shows on spikes, and when a CGM is worth $50.
About the author
F. Perry Wilson, MD MSCE is a nephrologist, clinical researcher, and Associate Professor of Medicine and Public Health at Yale University, where he directs the Clinical and Translational Research Accelerator. He hosts the Wellness, Actually podcast with Emily Oster, writes the weekly Impact Factor column on Medscape, and is the author of How Medicine Works and When It Doesn't (Grand Central, 2023).