Have all girls or all boys? Study suggests the odds aren't 50/50
Summary
A study by Harvard University researchers found that the chance of having all boys or all girls in a family may not be just random. They examined births and noted families with three or more children often show a pattern towards having more of one gender.Key Facts
- The study analyzed birthing records of 58,007 women.
- Researchers found families with three children tend to have either all boys or all girls.
- For families with three boys, the chance of having another boy was 61%.
- For families with three girls, the chance of having another girl was 58%.
- The study excluded cases with single births, twins, or certain pregnancy complications.
- Women who had infertility treatments were not included.
- Factors like the mother's age and menstrual cycle were considered, but exact reasons for the pattern remain unknown.
- The study couldn’t explore the father's role in sex determination due to lack of data.
Read the Full Article
This is a fact-based summary from The Actual News. Click below to read the complete story directly from the original source.
