Almost 6,500 women between 65 and 80 years old self-reported their caffeine consumption over 10 years, and the ones drinking more than 261 milligrams of caffeine each day showed a 36 percent reduced risk of dementia, according to a study.

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Almost 6,500 women between 65 and 80 years old self-reported their caffeine consumption over 10 years, and the ones drinking more than 261 milligrams of caffeine each day showed a 36 percent reduced risk of dementia, according to a study.