2 To 3 Cups of Coffee a Day May Reduce Dementia Risk. But Not if It’s Decaf.
If you think your daily doses of espresso or Earl Grey sharpen your mind, you just might be right, new science suggests.
A large new study provides evidence of cognitive benefits from coffee and tea — if it’s caffeinated and consumed in moderation: two to three cups of coffee or one to two cups of tea daily.
People who drank that amount for decades had lower chances of developing dementia than people who drank little or no caffeine, the researchers reported. They followed 131,821 participants for up to 43 years.