The claim that girls have higher heartbeats is a myth, according to the provided reference.
Common Misconception: The Heart Rate Gender Myth
It's a very common misconception that a baby girl will have a faster heartbeat than a baby boy during pregnancy. The reference states that patients ask about this myth daily.
Reality: Heart Rate and Fetal Gender
- The myth: A fetal heart rate above 140 beats per minute indicates a girl.
- The reality: There is no scientific basis to suggest that fetal heart rate can predict the sex of a baby.
Why Does This Myth Persist?
Despite the myth, there is no significant difference in heart rate between male and female fetuses. Heart rate can fluctuate due to various factors, including:
- Fetal activity: When the baby is moving, the heart rate will increase.
- Gestational age: The heart rate of a fetus generally decreases as the pregnancy progresses.
- Other external factors: Maternal stress, medications, and caffeine intake can also affect a fetal heart rate.
In Conclusion
The idea that girls have faster heart rates is incorrect. The fetal heart rate is not a reliable indicator of sex. It's essential to rely on accurate methods like ultrasounds or genetic testing to determine a baby's sex.