Austin Argentieri is a Research Fellow at the Analytic and Translational Genetics Unit (ATGU), Massachusetts General Hospital, with academic appointments at Harvard Medical School and the Broad Institute. He holds a DPhil from the University of Oxford, where he conducted postdoctoral research in large-scale population health analysis. His research focuses on the genetic, biological, and environmental determinants of human aging and age-related diseases, integrating exposomics, genomics, metabolomics, and proteomics data from large population cohorts. He is best known for developing a proteomic clock published in Nature Medicine that uses approximately 3,000 blood plasma proteins to predict biological age and forecast mortality and chronic disease risk across diverse populations.