Esther Haugabrooks, PhD is a toxicologist for the Physicians Committee of Responsible Medicine (PCRM) in the Research and Regulatory Affairs Department. Prior to working at PCRM, she was a Medical Research Manager for the Florida Department of Citrus where she helped identify links between citrus fruit/juice intake and health indicators. At PCRM, Dr. Haugabrooks works to implement human-relevant test methods and minimize the use of animals in domestic and international chemical testing. Co-Author of Dr. Ted A. Loomis's Essentials of Toxicology, 4th, Dr. Hayes holds degrees from Auburn University (PhD and MS) and Emory University (AB).. Dr. Hayes has held Professorships at the University of Alabama, the University of Mississippi Medical Center and Wake Forest University School of Medicine. Dr. Hayes is a past Secretary-General of IUTOX (two terms), past board member of the American Board of Toxicology, a past president of the American College of Toxicology, the Toxicology Education Foundation, and the Academy of Toxicological Sciences and a past member of the council of the Society of Toxicology. He is currently the Vice President of the Toxicology Forum. Dr. Hayes is a diplomate of the American Board of Toxicology, the Academy of Toxicological Sciences, the American Board of Forensic Medicine, and the American Board of Forensic Examiners. He is a Fellow of the Academy of Toxicological Sciences, the Royal Society of Biology (UK), the American College of Forensic Examiners and the American College of Nutrition. Dr. Hayes is a registered toxicologist in the European Union (ERT) and a certified nutrition specialist (food safety). Dr. Hayes was honored by the Society of Toxicology in 2006 with the Society's Merit Award, by the Mid-Atlantic Society of Toxicology with its Ambassador Award in 2012, by the American College of Toxicology in 2012 with its Distinguished Scientist Award and by the International Dose-Response Society in 2013 with its Outstanding Leadership Award. Dr. Hayes was named a Distinguished Fellow by the American College of Toxicology in 2013 and a fellow of the American Association for the Advancement of Science in 2014.