The Swedish study surveyed 4,792 15-year-old boys. Those who ate fish more than once a week scored higher on intelligence tests at age 18. The late teen years are a critical time in the brain's ability to process new skills and social behavior.
Lead researcher Dr. Maria Aberg of Goteborg University said, "These findings are significant because the study was carried out between the ages of 15 and 18, when educational achievements can help to shape the rest of a young man's life."
Past studies aimed at women who ate fish regularly during pregnancy found that their children tended to have higher intelligence scores than their peers.
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