Norman K. Hollenberg, M.D., Ph.D. earned his undergraduate and medical degrees at the University of Manitoba in Canada and his Ph.D. in pharmacology at the Karolinska Institute in Sweden and in Manitoba. After a medical residency in Winnipeg, he completed his clinical education in medicine and nephrology at the Peter Bent Brigham Hospital in Boston, where he has remained from that time, successively as an Assistant, Associate, and Full Professor. He has served as an editor of the New England Journal of Medicine and Encyclopedia Britannica, on the editorial boards of a number of medical journals, and has memberships in numerous medical organizations, including the American Society of Clinical Investigation, the American and International Societies of Nephrology, and Hypertension, the American Heart Association, and the American Society for Pharmacology and Experimental Therapeutics. Dr. Hollenberg has authored more than 600 publications, over than half of which are original articles in the archival literature. His research interests include control of the renal circulation, hypertension and the kidney, sodium homeostasis, the renin-angiotensin-aldosterone system, digitalis-like factors, genetic factors in hypertension, and diabetes mellitus, and most recently the vascular effects of flavonoid-rich foods. In the area of therapeutics he has especially been interested in the application of quality of life measures to outcomes assessment. In his other role, as Director of Research in the Department of Radiology, Dr. Hollenberg has pursued interests in collateral arterial vessel growth and reactivity, prior probability as a determinant of diagnostic strategy, and the implications of genetics for the diagnostic process. Among the awards and honors he has received, Dr. Hollenberg values especially the Royal College of Physicians Gold Medal and Prize, and the Medical Writers Association of American Medal and Prize for best medical book of the year, "Heart Facts", published in 1989 and co-authored with his daughter.