“We found that people who eat chocolate at least once a week tend to perform better cognitively,” said Elias. “It’s significant—it touches a number of cognitive domains.”
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Not only was the sample size large—a shade under 1,000 people when the new questionnaire was added—but the cognitive data was perhaps the most comprehensive of any study ever undertaken.
[…]
In scientific terms, eating chocolate was significantly associated with superior “visual-spatial memory and [organization], working memory, scanning and tracking, abstract reasoning, and the mini-mental state examination.”
But as Crichton explained, these functions translate to every day tasks, “such as remembering a phone number, or your shopping list, or being able to do two things at once, like talking and driving at the same time.”