LOS ANGELES—A new study reveals two indigenous groups in the Bolivian Amazon have among the lowest rates of dementia in the world, according to an international team of researchers, including those from the University of Southern California (USC).
The researchers found among older Tsimane and Moseten people, only about 1 percent have dementia. By comparison, 11 percent of people age 65 and older living in the United States have dementia, according to the Alzheimer’s Association.
