Mark Chaffin is a Senior Computational Associate in the Cardiovascular Disease Initiative and Precision Cardiology Lab of the Broad Institute of MIT and Harvard. He joined the group in 2016, and focuses his efforts on applying various computational methods to dissect cellular diversity in cardiac tissue and study how this relates to disease. Prior to joining the Broad Institute, he studied computational biology and quantitative genetics at the Harvard T.H. Chan School of Public Health, specifically exploring the genetic regulation of gene expression. He holds a S.M. degree in Computational Biology and Quantitative Genetics from the Harvard T.H. Chan School of Public Health and a B.A. in Biology and Mathematical Sciences from Colby College.