Helmut Sies, MD, PhD (hon), studied medicine at the universities of Tรผbingen, Munich, and Paris. He was the professor and chair of the Institute for Biochemistry and Molecular Biology I at Heinrich-Heine-University Dรผsseldorf, Germany, where he is now professor emeritus. He is a member of the German National Academy of Sciences Leopoldina and was the president of the North Rhine-Westphalian Academy of Sciences and Arts. He was named โRedox Pioneerโ; was the president of the Society for Free Radical Research International (SFRRI). Helmut Sies introduced the concept of โOxidative Stress in 1985, and was the first to reveal hydrogen peroxide as a normal constituent of aerobic cell metabolism. His research interests comprise redox biology, oxidants, antioxidants, micronutrients.