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Good evening. This snapshot of stories and roundup is recommended just for you, based on your interests and reading history. | | | | (The Washington Post/Emma Kumer/The Washington Post; iStock) | | | | | | |  What to know Americans spend billions on brain supplements, but experts question their efficacy. The Food and Drug Administration provides limited oversight, and many claims lack rigorous scientific backing. Studies show mixed results, with some benefits attributed to the placebo effect. Experts recommend exercise, sleep and social connection for cognitive health. Summary is AI-generated, newsroom-reviewed. | | | | | How was today's newsletter? | | | | | | | | |
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