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Many don’t know key facts about U.S. Constitution, Annenberg civics study finds

Many Americans do not know what rights are protected under the First Amendment and a substantial number cannot name all three branches of government, according to the 2023 Annenberg Constitution Day Civics Survey.

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  • Exposure to air pollution worsens Alzheimer’s disease
    Emissions from a power plant.

    Image: Pencho Chukov via Getty Images

    Exposure to air pollution worsens Alzheimer’s disease

    New research from Penn Medicine finds living in areas with high concentration of air pollution is associated with increased buildup of amyloid and tau proteins in the brains of Alzheimer’s patients, accelerating cognitive decline.

    Sep 9, 2025