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  1. 19521

    Your article appears to suggest that healing of old people could be promoted by young people’s blood. Perhaps there is something to the Dracula story after all. Young people give blood for money. Anything known about the effect of transfusions on old people? Bill HawkinsMinneapolis, Minn. The mice in this experiment exchanged far more blood […]

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  2. Healing secret lies in blood

    An unknown factor in blood may be the key to why young people and animals heal much faster than old ones do.

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  3. Earth

    Straight Flush

    Scientists are evaluating the results of the flood they unleashed in the Grand Canyon last November, hoping that it will restore sandbars and beaches along the Colorado River just downstream of Arizona's Glen Canyon Dam.