You’ve probably seen reports that suggest smartphones are not so great for your health. But new research suggests that using your phone can be good for you — after a certain age.

Related video above: New study links early smartphone ownership with higher health risks in preteens

The study, which was published in Nature Human Behavior , found that older adults who regularly use smartphones have a lower rate of cognitive decline than those who use them less often. That challenges the idea that smartphone use drives so-called “digital dementia,” which suggests that long-term tech exposure may worsen cognitive abilities, and also raises questions about whether phone use might boost the cognitive health of younger adults, too. Here’s what you need to know.

What did the study find?

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