offering a window into how people can sustain their brain health and how brain-training games can play a role. We believe these studies offer some strategies to train your brain the right way.

Brain-training games remain unproven, but research shows what sorts of activities do benefit cognitive functioning.

Some 2.3 million of U.S. adults over 65—more than 4%—have a diagnosis of dementia. But even without a diagnosis, a certain ...