The common belief that frequent use of digital devices can lead to cognitive decline later in life has been challenged by recent findings. A team of researchers from Baylor University and Dell Medical School at the University of Texas at Austin analyzed data from 57 studies involving more than 411,000 people aged 50 and older. The results, published in the journal Nature Human Behaviour, indicate that regular use of digital technology is associated with a lower risk of cognitive decline.
A new look at the impact of technology
The researchers confronted two hypotheses: “digital dementia,” suggesting a negative impact of technology on cognitive abilities, and the concept of “technological reserve,” assuming that active use of technology can support cognitive health. The analysis showed that people who regularly used computers, smartphones, or the internet had a 58% lower risk of cognitive impairment and a 26% lower risk of deterioration over time compared to those who were less digitally engaged.
The benefits of using technology may be due to several factors. Activities such as solving technical problems, learning how to use new applications, and maintaining social contacts online stimulate the brain and require adaptation. For people who did not grow up with technology, such challenges can act as cognitive training, supporting the so-called “technological reserve.”
The importance of active engagement
Researchers emphasize that active and engaged use of technology is key. Passive screen time, such as mindlessly scrolling through content, does not provide the same benefits. In contrast, interactions that require thinking, planning, or communication can support cognitive health.
The results of the study suggest that technology, when used appropriately, can be a tool to support cognitive function in older age. Instead of fearing the negative impact of technology, it is worth promoting its conscious and active use as part of brain health prevention.
Sources: Nature, Media and Public Relations, Dell Medical School
