News

  1. In depression, the placebo also rises

    In a small group of depressed patients, those whose condition improved after taking placebo pills for 6 weeks displayed many of the same brain changes observed in people who benefited from an antidepressant drug.

    By Bruce Bower
  2. Health & Medicine

    Spice component versus cancer cells

    Curcumin, a compound in the spice turmeric, teams up with an immune-system protein to kill prostate cancer cells in a new laboratory study.

    By Nathan Seppa
  3. Earth

    Honey may pose hidden toxic risk

    Many honeys may contain potentially toxic traces of potent liver-damaging compounds produced naturally by a broad range of flowering plants.

    By Janet Raloff
  4. Animals

    No Tickling: Common caterpillars deploy defensive hair

    The caterpillars of the European cabbage butterfly have a chemical defense system that scientists haven't documented before.