News

  1. Health & Medicine

    Soy compound revs up cancer fighter in healthy tissue

    A lab study of healthy breast tissue cells shows increases in the tumor suppressor protein PTEN in the presence of soy isoflavone genistein, a compound believed to fight breast cancer.

    By Nathan Seppa
  2. Health & Medicine

    Breast density signals tamoxifen’s effectiveness

    Decreasing breast density signals the drug tamoxifen is working in women at risk of developing breast cancer.

    By Nathan Seppa
  3. Life

    Hawaii’s honeyeater birds tricked taxonomists

    DNA from old museum specimens reveals evolutionary look-alikes.

    By Susan Milius
  4. Archaeology

    Tools with handles even more ancient

    An analysis of stone tools excavated at a Syrian site indicates that, around 70,000 years ago, Neandertals used a tarlike adhesive to affix sharpened items to handles.