It can be hard to prove exactly what causes dementia ― researchers think exercise, socialising, and eating well can all have preventative effects, but it’s hard to place boundaries on where causation ends and other factors, like class and environment, begin.
A 2023 paper published in the Journal of the American Geriatrics Society, however, brought another variable in: internet use.
The study, which looked at 18,154 dementia-free adults aged 50-65 over 17 years, relied on data from...