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A study at Ohio State University found that those who at fast food every day saw test scores improve 20 percent less than those who didn't over three years. The test started when children were 10 years old, and compared test scores in reading, math and science.

Even when researchers took other variables into account, the fast food seemed to have a significant effect.

Read The Washington Post's full breakdown, or check out the original study (Note: Most of the study is behind a paywall.)

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The quadrangle at Oxford College of Emory University. The university announced Wednesday it will be tuition-free for undergraduates whose families earn less than $200,000. (Courtesy of Kay Hinton)

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Julian Conley listens during opening statements in his trial at Fulton County Superior Court in Atlanta on Wednesday, Sept. 17, 2025. The 25-year-old is accused of fatally shooting 8-year-old Secoriea Turner in July 2020. (Abbey Cutrer/AJC)

Credit: abbey.cutrer@ajc.com