1. Health & Medicine

    Nobel prize: Physiology or medicine

    The 2001 Nobel Prize in Physiology or Medicine goes to three researchers who pioneered work in cell division.

  2. Humans

    Nobel prizes mark 100th anniversary

    This year the Nobel prizes are a century old.

  3. Health & Medicine

    Sperm Protein May Lead to Male Pill

    A protein that helps sperm move their tails may be a perfect target for a male contraceptive.

  4. Health & Medicine

    Mushrooming Concerns

  5. Health & Medicine

    Vitamin relative may aid stroke repair

    Dehydroascorbic acid, a precursor of vitamin C, may help stroke patients retain use of parts of their brain at risk from the blood shut-off caused by strokes.

  6. Health & Medicine

    Detecting cancer risk with a chip

    Researchers can use microcantilevers studded with antibodies that react to prostate specific antigen, or PSA, to analyze blood samples for signs of prostate cancer.

  7. Health & Medicine

    EMFs in home may limit night hormone

    A pair of studies suggests a link, at least in some women, between elevated residential exposure to electromagnetic fields and reduced production of the hormone melatonin.

  8. Health & Medicine

    Aging cells may promote tumors nearby

    Cells that enter a state called senescence in older individuals may stimulate nearby cells to become tumors.

  9. Health & Medicine

    Chemical Neutralizes Anthrax Toxin

    Scientists have created a synthetic compound that, when tested in rats, disables the toxin that makes anthrax lethal.

  10. Health & Medicine

    Oceans apart, but surgery succeeds

    A French group performed the first transatlantic operation when surgeons in New York controlled a robot in Strasbourg, France, which removed a woman's gall bladder.

  11. Health & Medicine

    For a change, infection stymies HIV

    A hepatitis-like virus that causes no known diseases seems to help people stave off the progression of HIV, the AIDS virus.

  12. Anthropology

    Humans in eastern Asia show ancient roots

    Human ancestors lived in northeastern Asia about 1.36 million years ago, making it the oldest confirmed occupation site in eastern Asia.