News

  1. Health & Medicine

    Study challenges surgery for lung disease

    Patients with the most severe emphysema shouldn't undergo major surgery that removes part of their damaged lungs.

    By Damaris Christensen
  2. Health & Medicine

    Walking and eating for better health

    A low-fat diet and regular exercise can ward off diabetes in people at high risk of developing the disease.

    By Susan Milius
  3. Health & Medicine

    Gene implicated in deadly influenza

    A strain of influenza virus that struck in Hong Kong in 1997 got some of its lethality from a mutation in the gene encoding an enzyme called PB2.

    By Nathan Seppa
  4. Earth

    Antarctic sediments muddy climate debate

    Ocean-floor sediments drilled from Antarctic regions recently covered by ice shelves suggest that those shelves were much younger than scientists had previously thought.