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What can polls tell us in 2024?

John Lapinski, the Robert A. Fox Leadership Professor of Political Science and director of the Robert A. Fox Leadership Program and the Penn Program on Opinion Research and Election Studies, talks polling in this presidential election year.

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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