A large, long-term study analyzing data from nearly 132,000 participants over 43 years found that moderate consumption of caffeinated coffee or tea was linked to a lower risk of dementia and better cognitive performance over time. The most promising results emerged from 2–3 cups of caffeinated coffee daily or 1–2 cups of tea. Crucially, the benefits held true even for individuals with a genetic predisposition to dementia. Researchers note that caffeine likely plays a key role, though other bioactive compounds in these beverages may also contribute. It’s important to note that decaffeinated coffee did not show the same associations.
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