Chances are, you’re never far from your phone, and your friends and family are the exact same way. But that a good thing.

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 ...

The good news is research has shown that people can make changes throughout adulthood that can help prevent or delay cognitive decline and even reduce their risk of dementia. These include quitting ...