Dr. Aubrey de Grey works on the development of medical innovations that can postpone all forms of age-related ill-health. His main focus is on rejuvenation: the active repair of the various types of molecular and cellular damage that eventually cause age-related disease and disability, as opposed to the mere retardation of the accumulation of such damage. He performs this work in his capacity as chief science officer of SENS Research Foundation and as VP of new technology discovery of AgeX Therapeutics, and also as editor-in-chief of Rejuvenation Research, the highest-impact peer-reviewed academic journal focused on postponing aging.