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  1. Health & Medicine

    Forget about jet lag, and much more

    Airline flight attendants with chronic jet lag have higher stress hormone concentrations and smaller temporal lobes (centers of short-term memory in the brain)than do more rested attendants.

    By Jessa Netting
  2. Health & Medicine

    Prostate protection? This is fishy

    Diets rich in fish may cut a man's risk of prostate cancer.

    By Janet Raloff
  3. Animals

    Fruit flies hear by spinning their noses

    Drosophila have a rotating ear—and odor-sensing—structure that's new to science.

    By Susan Milius
  4. 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.