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Older mom? You may live longer, too, study suggests

Image: A mother holds her 4-week-old son in Tuscaloosa, Ala. on April 4, 2013.
A mother holds her 4-week-old son in Tuscaloosa, Ala. on April 4, 2013. Women who can naturally have children later in life may be genetically predisposed to live longer, a new study finds.Robert Sutton / AP, file