John R. Halliwill, University of Oregon (IMAGE) University of Oregon Caption John R. Halliwill, director of the Exercise and Environmental Physiology Lab at the University of Oregon, was part of a 10-member research team that identified genes associated with post-exercise recovery. His team found that high dosages of antihistamines, which block histamine receptors, had a dulling effect on 27 percent of the genes. Credit Photo by Dustin Whitaker Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.