Sven Dreyer studied medicine at the Heinrich Heine University in Düsseldorf, graduated in 2000 and received his doctorate in 2008 (Dr. Med.). He trained as a specialist in anesthesiology at the University Hospitals in Düsseldorf and Essen. Dreyer holds additional certifications for Emergency Medicine, Intensive Care Medicine and is qualified as a Hyperbaric Medicine Physician. Currently, he is head of the hyperbaric chamber facility at the University Hospital Düsseldorf. In an honorary capacity, Dr. Dreyer is a member of the Federal Executive Board of Europe's largest physicians' union, the Marburger Bund, and of the Executive Board of the North Rhine Medical Association.