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  1. Health & Medicine

    Coffee’s curious heart effects

    Very high or low daily consumption of coffee appears to pose far more of a heart risk than drinking moderately.

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  2. Physics

    Marrying matter and light

    Physicists have created circuit components that, in a manner analogous to atoms, meld with light, opening new ways to study fundamental light-matter interactions.

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  3. The tree of life, with tangled roots

    Two ancient, rudimentary organisms merged to create the first complex cell, new data suggest.

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  4. Schizophrenia takes fatal turn in China

    Suicides among people with schizophrenia are a major public-health concern in China.