Study: Baby's Sex Plays a Role in Pregnant Women's Immunity (IMAGE)

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Study: Baby's Sex Plays a Role in Pregnant Women's Immunity

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Melissa Fox noticed her allergies suddenly flared up while pregnant with her daughter, which didn't happen with her son. A new study suggests that might not be a coincidence. Researchers found women tend to react with stronger responses to immune challenges while pregnant with girls than with boys.

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The Ohio State University Wexner Medical Center

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Courtesy: The Ohio State University Wexner Medical Center

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