Byte of Prevention Blog
Digital Dementia: Study Suggests Digital Technology Might Reduce Risk of Cognitive Impairment

Numerous studies have suggested that digital technology use can negatively impact our mental health. The stress created by technology can lead to anxiety, feelings of depression, and loss of sleep. The psychology community has coined a term for it. They call it technostress. Mental health professionals have theorized the overindulgence in technology causes what they call “digital dementia.”
A new study published in Nature Human Behavior by neuroscientists from Baylor University and the University of Texas at Austin Dell Medical School challenges the popular notion of “digital dementia” and instead suggests a positive association between technology use and cognitive resilience in older adults.
The study involved a comprehensive meta-analysis of over 136 studies encompassing data from more than 400,000 adults. Contrary to the prevailing belief that digital technology accelerates cognitive decline, their findings indicate a significant reduction in the risk of cognitive impairment among adults who engage with digital technologies. This includes a striking 58% lower risk of cognitive impairment, even after adjusting for factors like socioeconomic status, education, and baseline cognitive abilities.
The study supports the hypothesis of “technological reserve,” suggesting that active engagement with digital tools promotes behaviors that preserve cognitive function. For many older adults, navigating technologies like smartphones and computers presents ongoing cognitive challenges, from learning new software updates to troubleshooting connectivity issues. Despite occasional frustrations, these activities may serve as cognitive exercises that help maintain and even enhance brain health over time.
Technology can also foster social connectivity, which is crucial for cognitive health in aging populations. Platforms such as video calls and messaging apps facilitate communication and maintain social networks, reducing loneliness and supporting overall cognitive functioning. This increased social interaction, facilitated by digital tools, improves cognitive outcomes and reduces dementia risks.
The study authors acknowledge the potential drawbacks such as distracted driving and decreased face-to-face interaction. They advocate for a balanced approach to technology use among older adults. This does not include doomscrolling on TikTok. Encouraging seniors to adopt and adapt to digital tools, starting with simple applications like photo sharing or messaging, though, can provide substantial cognitive and social benefits.
While debates about the effects of technology on cognition persist, current research suggests that judicious use of digital tools can significantly contribute to cognitive well-being among older adults. Embracing technology as a tool for cognitive engagement and social connectivity represents a promising avenue for supporting cognitive health in our aging population.