Christos Tolias MBBS, PhD, FRCS (Engl), FRCS (SN) gained his medical degree from Athens National University, Greece in 1989. He became a Fellow of the Royal College of Surgeons of England in 1994, and completed his PhD on “Extracellular Superoxide and Nitric Oxide: A real-time investigation in the role of free radicals in brain cell physiology and pathophysiology in vitro” in 2000 at the University of Warwick, UK. He is currently Consultant Neurosurgeon & Honorary Senior Lecturer at King`s College Hospital NHS Foundation Trust with a major interest in vascular neurosurgery . He is also lead Clinician in Neurosurgery, SBNS Council Member, Examiner in the Intercollegiate Specialty Examination in Neurosurgery and Director of the first nationally accredited UK Senior Neurovascular Fellowship.