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Story summary
- A Harvard University study analyzed data from more than 131,000 health professionals over 43 years.
- Drinking two to three cups of caffeinated coffee daily is associated with an 18% lower dementia risk.
- Drinking one to two cups of tea daily is associated with a 16% lower dementia risk.
- Decaffeinated coffee showed no benefits.
- Further studies are needed to confirm the findings.
