A Harvard-led study published in JAMA found that moderate coffee and tea consumption (2-3 cups of coffee or 3-5 cups of tea daily) is linked to a 28% lower risk of dementia and a 32% lower risk of stroke, with the strongest protection seen when combining both beverages (4-6 cups total per day).
The neuroprotective benefits come from caffeine and bioactive compounds like phenolics, polyphenols and flavonoids, which reduce oxidative stress, inflammation and amyloid-beta buildup – key contributors to dementia.
Decaffeinated coffee did not show the same benefits, suggesting caffeine plays a critical role, while tea (especially green and black varieties) provides additional antioxidants that support brain function.
The study tracked 131,821 participants over decades but cautions that more isn’t better. Benefits plateau at moderate intake, and excessive consumption does not further reduce risk.
Researchers emphasize that while the association is strong, lifestyle factors (diet, exercise, genetics) remain crucial, and non-drinkers shouldn’t force consumption solely for potential brain benefits.
What if your daily coffee or tea ritual wasn’t just a caffeine boost, but also a shield against dementia and stroke? A groundbreaking new study suggests just that.
Read Full Article: https://www.naturalnews.com/2026-02-18-study-reveals-power-coffee-tea-preventing-dementia.html
