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Reconnecting on Penn’s campus

This year’s Alumni Weekend included panels, parades, parties, and so much more.
alumni hold Penn '99 signs and umbrella for Alumni Parade
Saturday’s Alumni Parade brought to Locust Walk—even in the rain—more than 1,000 guests from all reunion years.

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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