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  1. Health & Medicine

    New studies add evidence to a possible link between Alzheimer’s and herpesvirus

    Researchers saw higher levels of herpesvirus in the brains of Alzheimer’s patients, which may contribute to plaque formation.

    By Leah Rosenbaum
  2. Anthropology

    Koko the gorilla is gone, but she left a legacy

    An ape that touched millions imparted some hard lessons about primate research.

    By Bruce Bower
  3. Life

    Here’s how drinking coffee could protect your heart

    Coffee’s heart-healthy effects rely on boosting cells’ energy production, a study in mice suggests.

    By Tina Hesman Saey
  4. Physics

    Einstein’s general relativity reigns supreme, even on a galactic scale

    Scientists have made the most precise test of Einstein’s theory of gravity at great distances.