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    Ferris Jabr

    Scientific American
    The flu shot stimulates immunity against a protein called hemagglutinin, which extends from the surface of the flu virus. Hemagglutinin (shown here as little spikes) has a "head" and a "stem."
    How Does the Flu Actually Kill People?

    Every year the common virus is lethal to many. What happens inside the body that results in death?

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      The Psychology of Effective Workout Music

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      By Ferris Jabr Published 22 March 13

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