1. Health & Medicine

    Studies suggest how salad may protect heart

    Lutein, a yellow pigment in many fruits and vegetables, may inhibit processes that jump-start the development of atherosclerosis.

  2. Health & Medicine

    Leukemia overpowers drug in two ways

    Researchers discover why the anticancer drug Gleevec, also called STI-571, helps many patients who have chronic myelogenous leukemia but not those who have entered the crisis stage of the disease.

  3. Health & Medicine

    Coming to Terms with Death

    Some newly recognized forms of cell death might be harnessed to aid people with cancer and other serious diseases.

  4. Anthropology

    Human fossils tell a fish tale

    Fossil clues indicate that Stone Age humans ate a considerable amount of seafood, giving them a broader and more resilient diet than that of Neandertals.

  5. Anthropology

    Early agriculture flowered in Mexico

    Mexico may have served as a center of early plant domestication in the Americas, according to researchers who have excavated a site near Mexico's Gulf Coast.

  6. Health & Medicine

    Soy estrogens: Too much of a good thing?

    Two studies of female mice suggest that genistein, an estrogen analog found in soy, could contribute to cancer risk.

  7. Health & Medicine

    Immune attack on self halts nerve damage

    T cells primed for autoimmune behavior may actually preserve nerves after a damaging blow.

  8. Health & Medicine

    Enzyme defends germ against stomach acid

    The newly solved structure of a Helicobacter pylori acid-fighting enzyme has scientists divided about how the enzyme works.

  9. Health & Medicine

    Genetically altered cells ease hemophilia

    A gene therapy using skin cells that are genetically modified to make clotting proteins, multiplied in a lab, and reinjected into a person eases some bleeding in patients with severe hemophilia.

  10. Health & Medicine

    New guidelines would cut cholesterol

    The National Heart, Lung, and Blood Institute has developed new guidelines for physicians that could triple the number of people taking cholesterol-lowering medication.

  11. Health & Medicine

    Angiostatin testing in people begins

    Angiostatin, a drug that cured cancer in mice, appears safe to use in preliminary tests on people with cancer.

  12. Health & Medicine

    Malaria prevention works in Tanzania

    Giving infants intermittent doses of antimalarial drugs during their first year prevents serious illness in most cases and doesn't leave them susceptible to harsh disease in their second year.