Boosting Brain Fitness

Sometimes, medical science makes breakthroughs that almost no-one sees coming. Other times, it just seems to catch up with what ordinary people have known intuitively for generations. Though the latest finding from the University of New South Wales falls into the second category, that doesn't diminish its significance. Having pored over thousands of pages of data, researchers are now all but convinced that by exercising their brains people can substantially reduce their risk of dementia. Ideally, regular intellectual stimulation would begin early in life and continue through the twilight years. But there's mounting evidence that a late-life surge in mental activity...