U.S. Dementia Rates Are Dropping Even as Population Ages
While the prevalence of dementia cases dropped, the average amount of education in the study population increased. Researchers don't know why education should be a protector against dementia, says Dr. Kenneth Langa, a professor of medicine at the University of Michigan and the lead author of the study. But they have some theories. "One is that education might actually change the brain itself," Langa says. "We think that it actually creates more, and more complicated, connections between the nerve cells so that you're able to keep thinking normally later into life." This article, which appeared in the New York Times, explains more.