Prof. Dr. Michał Tadeusz Holecki is an alumnus of the Medical University of Silesia (2001). He is currently holding a position as Head of Department of Internal Medicine, Autoimmune and Metabolic Diseases, Medical University of Silesia (Katowice, Poland), medical director of University Clinical Center of the Medical University of Silesia in Katowice, and is a former vice-Dean of the School of Health Science, Medical University of Silesia. He is a specialist in the field of Internal Medicine, Nephrology, Diabetology, and European SCOPE Fellow. Prof. Holecki was a Representative of Young Investigators United Board from EASO's Middle Region (2010-2015), is a member of OMTF (Obesity Management Task Force) since 2015, and is a member of EFIM Multimorbidity Group since 2011. The research line of Prof. Holecki is focused on the study of the influence of obesity and weight change on bone metabolism, obesity-induced hypertension, chronic kidney failure, and diabetes management. He is an author of more than 140 articles published in peer-reviewed journals and Polish National Guidelines concerning obesity in adults, urinary tract infections in adults, and intra-hospital infections.