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  • Penn welcomes the Class of 2022

    Hailing from 49 states (all but Wyoming), Puerto Rico, and 88 countries around the world, the 2,552 members of the Class of 2022 moved in to Penn on Aug. 22.
    Move in 2018

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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