News

  1. Health & Medicine

    Ketone diet could help in Parkinson’s

    A strict low-carb diet long used to treat some people with epilepsy has been tailored so that it might fight Parkinson's disease.

    By Ben Harder
  2. Earth

    PCBs damage fish immune systems

    A common Arctic fish can suffer subtle immunological impairments from exposure to polychlorinated biphenyls at concentrations recorded in some remote polar waters.

    By Janet Raloff
  3. Anthropology

    Human fossils are oldest yet

    Homo sapiens fossils found along Ethiopia's Omo River in 1967 date to 195,000 years ago, making them the oldest-known remains of our species.

    By Bruce Bower
  4. Health & Medicine

    Healing Gone Haywire: Wound-repair genes signal cancer spread

    An experimental test predicts which breast tumors will spread rapidly without treatment and which are likely to be less aggressive by tracking the activity of genes normally involved in mending injured tissue.