AI Insight
A long-term study tracking participants for up to 43 years found that drinking 2-3 cups of caffeinated coffee daily was associated with significantly reduced dementia risk and improved cognitive function. The protective effect was observed across individuals regardless of their genetic predisposition to dementia, but was specific to caffeinated coffee, with decaffeinated varieties showing no similar association.
Why it matters
This research suggests that moderate caffeinated coffee consumption may be a simple, accessible lifestyle intervention to help reduce dementia risk across diverse populations. The findings could inform dietary recommendations for cognitive health, particularly as dementia prevalence continues to rise globally with aging populations.
Understand the Science
Drinking two to three cups of caffeinated coffee daily was linked to a dramatically lower risk of dementia and better cognitive functioning in a study spanning up to 43 years. The benefits appeared regardless of genetic risk, but decaffeinated coffee did not show the same association.
Source: Drinking 2–3 cups of coffee a day linked to dramatically lower dementia risk