A recent analysis of classical medical texts suggests dementia was extremely rare in ancient Greece and Rome 2,000 to 2,500 years ago. The USC-led research, published in the Journal of Alzheimer’s Disease, bolsters the idea that Alzheimer’s disease and related dementias are diseases of modern environments and lifestyles, with sedentary behavior and exposure to air pollution largely to blame. “The ancient Greeks had very, very few—but we found them—mentions of something that would be like mild cognitive impairment,” said first author Caleb Finch, a University Professor at the USC Leonard Davis School of Gerontology. “When we got to the Romans,...