Dr. Hein serves as the Peter K. Knoefel Endowed Chair of Pharmacology, Professor and Chair of the Department of Pharmacology & Toxicology, and Distinguished University Scholar at the University of Louisville (UofL). He also serves as Deputy Director of the UofL Hepatobiology and Toxicology CoBRE and Director of the Training Core of the UofL Superfund Research Center and Director of the NIEHS T32 training program in environmental health sciences. Prior to recruitment to the University of Louisville, Dr. Hein served as chair of the Departments of Pharmacology & Toxicology at Morehouse School of Medicine and the University of North Dakota School of Medicine and Health Sciences (UND).  Dr. Hein’s research program incorporates precision environmental health and precision medicine, and has been funded by grants and contracts from the National Institutes of Health and other federal and private foundations and industry. He has coauthored over 300 peer-reviewed journal articles and book chapters, 75 gene sequences, and over 700 abstracts in the scientific literature. He has delivered over 150 invited presentations across the world. Dr. Hein was appointed as Chester Fritz Distinguished Professor at UND, an Outstanding Alumnus Award from the University of Michigan, the President's Award from the University of Wisconsin-Eau Claire, and President's Outstanding Scholarship, Research, and Creative Activity Awards in Basic/Applied Sciences and Career Achievement from UofL.