Forget what you’ve heard about smartphones rotting your brain—new research says the opposite might be true, especially for older adults.
A sweeping analysis of more than 400,000 people aged 50 and up found that those who regularly use smartphones, tablets, or computers tend to experience less cognitive decline than those who use them less frequently. The findings, published in Nature Human Behaviour, turn the “digital dementia” theory on its head.
Researchers reviewed 57 global studies and found no solid evidence that screen use harms brain function in older adults. In fact, the data revealed a positive connection between using digital devices and stronger mental performance. While it’s still unclear if technology use directly protects brain health—or if people with better brain function are simply more likely to embrace it—experts say it’s likely a mix of both.
So what makes tech use beneficial? According to Dr. Jared Benge, a neuropsychologist at UT Health Austin, it comes down to the “three Cs”:
- Complexity – Navigating apps and tech tools keeps the brain engaged
- Connection – Staying socially active online supports emotional and mental health
- Compensation – Tools like reminders and GPS help users stay independent, even if memory isn’t what it used to be
But not all screen time is equal. Dr. Michael Scullin, co-author and cognitive neuroscientist, emphasized that passive use (like endless scrolling or background TV) likely offers little benefit. In contrast, interactive, goal-oriented, and social tech use may help sharpen mental skills and keep older adults engaged.
Smartphones aren’t the enemy. Used wisely, they might just be one of the best tools for staying sharp in your golden years.
