A Whitehead Fellow since 2016, Corradin investigates genetic variants, small differences in DNA sequence that can prompt disease-causing changes in gene regulation. Her lab defined the concept of “outside variants,” which helps to explain how genetic variants increase one’s likelihood of developing disease. Among her achievements as a Fellow, she developed a method to identify the cell type affected by a specific disease-linked variant, and she created an approach for defining epigenetic variation in some individuals with opioid use disorder—which will help researchers identify genes associated with the disorder.