John Newman, MD, PhD is a geriatrician, basic scientist, and educator at the Buck Institute for Research on Aging and in the Division of Geriatrics at UCSF. His laboratory at the Buck Institute carries out basic science and clinical research investigating the energy and signaling functions of ketone bodies in the aging brain, Alzheimer's disease, and frailty. He also leads a clinical-translational program to understand how aging-related metabolic mechanisms drive the geriatric syndrome delirium. He is a member of the Bakar Aging Research Institute at UCSF and the UCSF Older Americans Independence (Pepper) Center, and a leader of the national Geroscience Education and Training Network.