Science

Drinking 2–3 cups of coffee a day linked to dramatically lower dementia risk

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.

✦ Extractive summary — built from the sources' own reporting•From 1 source•1 min read•Updated November 7, 2026, 10:16 AM UTC

The benefits appeared regardless of genetic risk, but decaffeinated coffee did not show the same association.

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