Baby's heart rate to determine sex?

Ana • Trauma RN at Parkland Memorial Hospital in Dallas, TX

pregnancy myth suggests that an unborn baby's heart rate can predict the baby's gender, with faster heart rates (above 140 bpm) indicating a girl and slower heart rates indicating a boy. The basis for this is the faster metabolism of baby girls. There have been several studies, including a large study by Austin Radiological Associates in the 1990s, but none has shown a statistical correlation.

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