Stimulating the brain delays, but does not prevent, dementia

AS THE baby-boomer generation contemplates the prospect of the Zimmer frame there has never been more interest in delaying the process of ageing. One consequence has been a dramatic rise in the popularity of brain-training games. But how effective really is a daily dose of cryptic crossword?

Robert Wilson, a neuropsychologist at Rush University in Chicago, and his colleagues decided to find out, by following a group of people without dementia. Participants were asked to rate how frequently they engaged in cognitively stimulating activities. The researchers were looking for such things as reading newspapers, books and magazines, playing challenging games like chess, listening to the radio and watching television, and visiting museums. ...