Olivier Bruyère, Ph.D., is currently Professor of Clinical Epidemiology in the Department of Public Health Sciences and of Geriatric Rehabilitation in the Department of Rehabilitation and Sport Sciences of the University of Liège in Belgium. He is head of the Research Unit in Public Health, Epidemiology and Health Economics in this University. Professor Bruyère is the Chief Executive Officer of the European Society on Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO), President of the Belgian Ageing Muscle Society (BAMS), General Secretary of the Belgian Bone Club (BBC) and member of the Scientific Advisory Board of the International Osteoporosis Foundation (IOF). He was the Vice-President of the Human Nutrition working group at the French Agency for Food, Environmental and Occupational Health & Safety (ANSES). His main fields of interest are prevention, rehabilitation, nutrition and pharmaco-epidemiology related to geriatric or rheumatic conditions. Besides being Editor-in-chief of the journal “The Archives of Public Health”, he is Associate Editor of “Aging Clinical and Experimental Research” as well as on the editorial board of various journals. He is author of more than 400 international scientific publications and book chapters.