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 ...

These activities 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 ...

Will solving Sudoku help stave off Alzheimer's? It makes sense in theory, but there are many variables and results are almost ...