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  • A virtual day of service

    The 27th annual Martin Luther King Jr. Commemorative Symposium on Social Change offers safe ways to serve and celebrate.
    People march waving signs that say "end segregated rules in public schools" and "we demand voting rights now"
    Martin Luther King Jr.’s legacy continues to inspire, offering opportunities to reflect and engage.

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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