Bradley J. Willcox, M.D., [...]., is an internationally recognized expert on healthy aging, a U.S. National Institute on Aging–funded scientist, and a principal investigator in geriatrics for the Pacific Health Research Institute. He is also Co-Principal Investigator of the Okinawan Centenarian Study and Assistant Professor of Geriatric Medicine at the University of Hawaii.

D. Craig Willcox, PH.D., M.[...]., is a noted medical anthropologist and gerontologist. He is an internationally recognized expert in nutritional anthropology, aging, and health. He is Assistant Professor at Okinawa Prefectural University–College of Nursing and Co-Principal Investigator of the Okinawa Centenarian Study.

Makoto Suzuki, M.D., PH.D., is a cardiologist and geriatrician and an internationally recognized expert on aging and health. He is Professor Emeritus at the University of the Ryukyus in Okinawa and Professor of Human Welfare and Director of the Okinawa Gerontology Research Center at Okinawa International University. He is the founder, Director, and Principal Investigator of the Okinawa Centenarian Study.