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  1. Earth

    Future Looks Cloudy for Arctic Ozone

    Clouds that drive ozone loss in the Antarctic turned up in force during the most recent Arctic winter.

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  2. Health & Medicine

    Gene change linked to poor memory

    A subtle change in a gene encoding a brain chemical may give some people better memory skills than others.

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  3. Health & Medicine

    Slow brain repair seen in Huntington’s

    In people with Huntington's disease, the brain tries to replace dying nerve cells.

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  4. Scanning a brain that’s out of tune

    Scientists have scanned the brain of a man who had great difficulty playing a tune and showed that his brain doesn't react normally to music.