Gary Small, M.D., is Professor of Psychiatry and Biobehavioral Sciences and the Parlow-Solomon Professor on Aging at the David Geffen School of Medicine at UCLA, Director of the UCLA Longevity Center, and Director of the Geriatric Psychiatry Division at the Semel Institute for Neuroscience & Human Behavior. Dr. Small's team has developed brain imaging technologies that detect the first signs of brain aging and Alzheimer's disease years before patients show symptoms, which has led to expanded Medicare coverage for brain PET scanning. In addition to testing medicines that might delay the onset of Alzheimer's disease, Dr. Small has studied and developed lifestyle and memory training programs for improving cognition and healthy aging, which are available throughout the U.S. in senior centers, community hospitals, and assisted living facilities.