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Ever wonder why some moms have all boys or all girls? Science may have the answer

Summary by Times of India
A new study challenges the idea that a baby's sex is pure chance. Harvard researchers studied pregnancies among US nurses. They found families with more kids had higher chances of all boys or all girls. Maternal age also links to baby's gender. Genes may influence baby's gender, but experts urge caution. Family choices and biological factors play a role.

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Times of IndiaTimes of India
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Ever wonder why some moms have all boys or all girls? Science may have the answer

A new study challenges the idea that a baby's sex is pure chance. Harvard researchers studied pregnancies among US nurses. They found families with more kids had higher chances of all boys or all girls. Maternal age also links to baby's gender. Genes may influence baby's gender, but experts urge caution. Family choices and biological factors play a role.

·India
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Times of India broke the news in India on Monday, July 21, 2025.
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