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. The benefits appeared regardless of genetic risk, but decaffeinated coffee did not show the same association.
A comprehensive 43-year study of U.S. adults has found that consuming two to three cups of caffeinated coffee daily is linked to a significantly lower risk of developing dementia and better cognitive health as people age. Researchers compared dementia rates among coffee drinkers and those who rarely consumed coffee, noting that 141 dementia cases occurred per 100,000 people among higher coffee drinkers, compared to 330 cases per 100,000 people among non-coffee drinkers.
The study also revealed that higher caffeine intake correlated with better cognitive health, with 7.8% of coffee drinkers reporting subjective cognitive decline compared to 9.5% of non-coffee drinkers. While tea consumption was also associated with better cognitive outcomes, decaffeinated coffee did not provide the same benefits, suggesting caffeine may play a key role.
The study highlights the potential value of regular caffeinated coffee and tea consumption for promoting brain health, although further research is needed to determine if caffeine is the primary factor.
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