Some 2.3 million U.S. adults over 65—more than 4%—have a diagnosis of ... In addition to these lifestyle changes, many people are turning to brain-training games, which claim to optimize your brain’s ...

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

"Challenging riddles designed to push your brain to its limits. Secret History uncovers the forgotten, mind-blowing facts ...