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  1. Health & Medicine

    Path to heart health is one with a peel

    Consuming lots of oranges and other citrus fruits, or their juices, can trigger beneficial, cholesterol-moderating changes in the blood.

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  2. Astronomy

    Variable quasar may help measure the cosmos

    A flickering cosmic mirage, recorded for the first time in X rays, promises to provide a new estimate of how rapidly the universe is expanding.

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  3. Wild tobacco heeds ‘ouch’ from sagebrush

    Biologists studying wild tobacco and sagebrush say they have found a case of interspecies plant communication in the field.

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  4. Untreated schizophrenia may spare brain

    Contrary to the fears of some researchers, treatment delays for schizophrenia may not worsen brain deficits associated with the mental disorder.