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Harvard Study Reveals Age Influences Child Gender Outcomes

7/23/2025

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Summary

Story summary

A groundbreaking Harvard study involving 58,007 women uncovers that the sex of children isn't just a matter of chance. Instead, maternal age and genetic factors play a significant role in determining whether families lean towards boys or girls. Notably, women over 28 are more likely to have children of the same sex, shaking up the long-held belief of a 50/50 split.

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Story summary

A groundbreaking Harvard study involving 58,007 women uncovers that the sex of children isn't just a matter of chance. Instead, maternal age and genetic factors play a significant role in determining whether families lean towards boys or girls. Notably, women over 28 are more likely to have children of the same sex, shaking up the long-held belief of a 50/50 split.