of the American Society for Nutritional Sciences (ASNS), the American Society of Animal Science, and the Poultry Science Association. He has served on the editorial boards for the Journal of Nutrition, Journal of Animal Science, Poultry Science, and Nutrition Reviews. Dr. Baker served on the National Research Council’s Board on Agriculture and Natural Resources (BANR) as well as on BANR’s Subcommittees on Swine Nutrition, Bioavailability of Nutrients, and Cat Nutrition. He was named a University Scholar at Illinois in 1986, and has received numerous research awards, including the ASNS Borden Award and the Dannon Mentoring Award. He is currently completing a 4-year term on the Board of Directors of the Federation of American Societies for Experimental Biology (FASEB).

ODED BAR-OR, M.D., is a professor of pediatrics and director of the Children’s Exercise and Nutrition Centre at McMaster University in Hamilton, Ontario. He received his M.D. from Hebrew University in Jerusalem, Israel, and completed 4 years of research training at Pennsylvania State University. Dr. Bar-Or’s research interests include the effects of climate, heat, cold, and exercise on children’s response to fluid and electrolyte replenishment. He was founder and director of the Department of Research and Sports Medicine at the Wingate Institute for Physical Education and Sport in Israel until assuming his current position in Canada. He has served as president of the Canadian Association of Sports Sciences and vice president of the American College of Sports Medicine. A major part of his research has focused on dehydration in children who exercise in the heat. Dr. Bar-Or is currently an editorial board member for a number of scientific journals.

KENNETH L. MINAKER, M.D., is chief of the Geriatric Medicine Unit and director of the Massachusetts General Hospital Senior Health Practice. He received his M.D. from the University of Toronto. After completing a Geriatric Fellowship at Harvard Medical School, he directed the Geriatric Research Education Clinical Center of the Veterans Health Service at Harvard University and was associate director of the Beth Israel Hospital’s Clinical Research Center. He has published numerous articles related to physiological changes related to aging and hydration in the elderly. He has served as editor of the Journal of Gerontology: Medical Sciences. He has received a number of awards and is a fellow of the Royal College of Physicians and Surgeons of Canada. He currently also serves as an associate professor of medicine and Director for Research at Harvard Medical School and its Division on Aging.