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Some Women's Brains Contain Male DNA: Study

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Male DNA and cells are commonly found in some women's brains and most likely come from male fetuses, according to a small new study.

The medical implications of male DNA and male cells in women's brains are unknown. Previous studies of microchimerism -- the presence of genetic material and cells that were exchanged between fetuses and mothers during pregnancy -- have linked it to autoimmune...

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