Dr. Lawrence Katz was a professor of neurobiology and researcher at Duke University Medical Center. He lived in Durham, North Carolina. Manning Rubin, a former Creative Director at J. Walter Thompson and Senior Creative Supervisor at K2Digital, Inc. is now at work on several new books. He lives in Pawlet, VT. Gary Small, M.D., is director of the UCLA Longevity Center. Named one of the world's leading innovators in science and technology by Scientific American, he appears frequently on Today, Good Morning America, PBS, and CNN. He is also author of the bestselling The Memory Bible.