6 fetal sex truth

Prospective father prospective mother have always eager to know in advance that the baby is male or female. People have been circulating in some forecasts saying sex of the fetus, they credible? United States, "New Scientist" Web site for this author, to help everyone distinguish authenticity.
Argument 1: terrible morning sickness, the unborn baby?
True or False: Wrong!The truth is:In contrast, pregnancy, pregnant women are even more severe reaction may be a girl. In 1999, researchers analyzed the responses of Sweden 8186 was hospitalized because of pregnancy, pregnant women, found that only 44.3% gave birth to baby boy.
Henrik by Danish experts study also found that response of pregnancy is only 46.5% of pregnant women, serious birth to baby boy, while other pregnant women, the proportion of boys was 51%. He also said that marital status can affect the sex ratio, relatively speaking, easier for single mothers daughter.

Argument 2: a good appetite will be a boy?
True or False: unreasonable!
　　The truth is:Although the Boston hospital studies show that pregnant women pregnant with the boy's appetite generally better than the pregnant girl, but the difference is not large enough to accurately predict fetal sex accordingly. Beijing Ji Shui Tan Hospital of Nursing, said Xiao Yalan, pregnancy, pregnant women, changes in taste, and pregnant women, individual differences, and gestational age, pregnancy, environment, mood and so on, but it has nothing to do with the sex of the child.

Argument 3: eat acid son, daughter love spicy food?
True or False: unreasonable!
　　The truth is:"Sour spicy girl child" is a folk saying, Beijing Union Medical College Hospital, deputy director of obstetrics and gynecology physician Fanqing Park pointed out that this can only be regarded as people experience the feeling of the production summary. From a medical standpoint, if pregnant women decreased appetite, sour or spicy indeed have something more sensitive, are individual differences in response of the normal pregnancy, and sex do not touch.

Argument 4: from the fetal heart rate can predict gender?
True or False: Yes!
　　The truth is:A statement circulated in some areas: fetal heart rate in more than 140 times per minute for girls, 140 per minute less for the boys.
But in fact, with the growth of the fetus, the heart rate is gradually declining. 8-10 weeks, the fetal heart rate 170-200 times per minute, mid-pregnancy, decreased to 120-160 times per minute. The researchers have used ultrasonic measuring less than 14 weeks of fetal heart rate, heart rate found in the girl's 151.7 times per minute, the boy's 154.9 times per minute, the difference is not significant. However, in childbirth, the baby's heart rate is indeed faster than boys.

Say 5: sharp stomach birth to a boy, round belly a girl?
True or False: unreasonable!
　　The truth is:Xiao Yalan said that pregnant women's belly type and location of the fetus, weight, and the amount of amniotic fluid and other factors. Some sports such as pregnant women, pregnancy will bear some of the belly; do not love sports, sitting all day, then belly Pison some people may be so summed up the belly-type differences.

Claims 6: Mom intuition is very accurate?
True or False: Yes!
　　The truth is:"Feminine intuition" powerful in many ways, including the prediction of fetal gender. In 1998, Tucson, Arizona University researchers investigated 108 claims of sex of the fetus in pregnant women have intuition, the results of 60% of the intuition is correct. However, this study did not publish the details are not available.