Some 2.3 million U.S. adults over 65—more than 4%—have a diagnosis of dementia. But even without a diagnosis ... In addition to these lifestyle changes, many people are turning to brain-training games ...

It also inspired numerous academic researchers to explore whether cognitive training really can make people smarter and even lower the risk for dementia ... Some brain training games teach ...

These activities most likely won’t prevent the brain damage that leads to dementia. But if someone does get Alzheimer’s disease, cognitive reserve “can mask the effect and delay the onset of ...