(NEWSER) – Who knew blood-sucking vampires were actually onto something? According to new US studies, the blood of young mice can rejuvenate the brains and muscles of older mice, effectively reversing the impact of aging, the New York Times reports. "I am extremely excited," says a professor. "These findings could be a game changer." The studies continued an old line of research by stitching younger mice to older ones, enabling them to exchange blood. In time, the young blood boosted activity in older stem cells, which produced new muscle tissue and neurons more easily than before, the Washington Post reports.

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