Edward J. Calabrese is a Professor of Toxicology at the University of Massachusetts, School of Public Health and Health Sciences, Amherst. Dr. Calabrese has researched extensively in the area of host factors affecting susceptibility to pollutants and is the author of over 1,000 papers in scholarly journals, as well as more than 10 books. Among his many awards, Dr. Calabrese received the 2009 Marie Curie Prize for his body of work on hormesis.