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  1. Health & Medicine

    Portrait of a cancer drug at work

    Newly revealed protein structures show how a breast cancer drug functions.

    By John Travis
  2. Health & Medicine

    Why beer may deter blood clots

    Downing a beer a day alters the structure of fibrinogen, a blood protein active in clotting.

    By Janet Raloff
  3. Archaeology

    Grave surprise rises in Jamestown fort

    Excavations in the 17th-century fort at Jamestown, Va., have yielded a grave containing the skeleton of a high-ranking male colonist.

    By Bruce Bower
  4. Health & Medicine

    When Drinking Helps

    Sometimes a nip of alcohol can indeed prove therapeutic, though usually not until middle age.