Not Just a Stimulant: 43-Year Study Reveals Another Benefit of Coffee

A 43-year study tracking older adults in the US found a link between drinking caffeinated coffee and a lower risk of dementia. Drinking two to three cups a day was associated with the best outcomes, but researchers emphasize that a causal relationship has not been proven.

A long-term study spanning up to 43 years and tracking older adults in the US found a link between drinking caffeinated coffee and a lower risk of dementia. According to data reported by Al-Arabiya, drinking two to three cups of coffee a day was associated with the best outcomes: 141 dementia cases per year per 100,000 people among coffee drinkers, compared to 330 cases among those who drank it rarely or not at all. Drinking one to two cups of tea a day was also found to be associated with better cognitive outcomes. Decaffeinated coffee did not show a similar link. Researchers emphasize that a causal relationship has not been proven, and other factors may explain the differences.