Vidar Stefansson is a medical doctor from Norway, and is currently a PhD student at UiT The Arctic University of Norway. His current research is on obesity, renal hyperfiltration, and kidney function decline. He is visiting the Kretzler lab for one year to participate in collaboration projects, and to learn more about systems biology from the experienced Kretzler lab team. His experience includes epidemiology and statistics, and clinical experience from emergency medicine, nephrology, urology, rheumatology, and general practice.