Substance found in young cerebrospinal fluid helps old mice remember

The memory of aging mice improved when they were given a substance found in the cerebrospinal fluid of young animals. ROBERT F. BUKATY/AP hide caption toggle caption ROBERT F. BUKATY/AP The memory of aging mice improved when they were given a substance found in the cerebrospinal fluid of young animals. ROBERT F. BUKATY/AP A team …

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