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Coffee May Boost Your Mood And Brainpower, Even Without Caffeine

Researchers found both caffeinated and decaffeinated coffee lowered stress and depression in 31 drinkers, while only caffeinated coffee improved attention and anxiety.

Summary by Science Alert
Drinking coffee may lift your mood and boost your cognitive performance, even without the added buzz of caffeine. A new study has compared caffeinated and decaffeinated coffee and found that they both have potential perks for the gut, mood, and behavior. Researchers at University College Cork in Ireland led a study that compared some health markers and the perceived well-being of 31 coffee drinkers, who drank three to five cups a day, with 31 pa…

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A recent study conducted by researchers at University College Cork in Ireland investigated the effects of both caffeinated and decaffeinated coffee on mental health and the gut microbiome. The research involved 62 participants, 31 regular coffee drinkers and 31 non-drinkers, and revealed that both types of coffee can provide significant benefits, even in the absence of caffeine. Comparative Study Between Caffeine-Reduced and Decaffeinated Coffee…

Many people feel that drinking coffee "clears their head" or "lifts their mood," but the mechanism behind this has not been fully understood until now. A study published by an international research team consisting of researchers from University College Cork in Ireland and the University of Parma in Italy has shown that coffee consumption alters the gut microbiome, which in turn affects brain function, stress, and mood.

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GIGAZINE broke the news on Sunday, April 26, 2026.
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