Researchers found that people are developing dementia a decade earlier than they were 20 years ago, possibly due to factors such as pollution and insecticides, as reported by The Columbus Dispatch. The study compared data from 21 Western countries between 1989 and 2010 and found that the disease is more commonly diagnosed in people in their late 40s, in addition to climbing death rates. The research suggest the issue is particularly severe in the United States. Study authors say neurological deaths in men over the age of 75 have nearly tripled, and have risen more than five-fold in women. Scientists...