The new study bolsters the notion that Alzheimer's disease and related dementias are diseases promoted by modern environments and lifestyles. At least that according to researchers. Quote, the ancient Greeks had very, very few, but we found them mentioned for something that would be like a mild cognitive impairment, end quote. That according to the lead researcher, Caleb Finch, a professor with the University of Southern California's Leonard Davis School of Gerontology