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Genetics

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brain scan of cerebral atrophy

A VIRAL LINK? A brain showing cerebral atrophy, a loss of nerve cells, one of the main signs of Alzheimer’s disease.

Tina Hesman Saey

FAMILY FINDER  Science News reporter Tina Hesman Saey tried out several consumer genetic testing companies to learn more about her ancestry.

Michael Douglas

FINDING FAMILY DNA testing helped Michael Douglas find his biological family in southern Maryland and his Irish roots.

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