Health From 100kg to Half Marathon: Simon Zsebök’s Radical Transformation by Dr Natalie Singh - Health Editor May 12, 2026 by Dr Natalie Singh - Health Editor May 12, 2026 Radical Fitness Transformations: The Science of Moving from Sedentary to Endurance Athlete Embarking on a total health restart is more than a physical challenge; it is a physiological and psychological … 0 FacebookTwitterPinterestEmail