Markus J Seibel, MD PhD FRACP FAHMS, is Professor of Endocrinology at Sydney Uni¬versity. He is the Inaugural Director of the Bone Research Program at the ANZAC Research Institute, and heads the Department of Endocrinology & Meta¬bolism at Concord Hospital, Sydney. His research in musculoskeletal biology covers topics such as glucocorticoid signalling in bone and its effects on bone and systemic fuel metabolism and ageing; the biology of bone metastases; and the clinical efficacy of secondary fracture prevention programs. Prof Seibel has published over 400 scientific papers and is the editor of 8 books. In 2017, he has been elected to the Australian Academy of Health and Medical Sciences. Prof Seibel is a Past President of the Australia and New Zealand Bone & Mineral Society (ANZBMS), a Member of the Board of Directors, International Federation of Musculoskeletal Research Societies (IFMRS), and the Chair of the Australian National Alliance for Secondary Fracture Prevention.