1, a man with many brothers at home
Simply put, if a man has more brothers, it proves that his father is more likely to provide the Y chromosome, so such a man is more inclined to have sons.
2. Healthy men
Men who want to have sons must have good sperm quality and activity. However, there are also some men who have been in sub-health for a long time and have maintained bad habits for a long time, such as smoking and drinking. This will not only threaten health, but also reduce sperm activity, not to mention giving birth to a son, even pregnancy is difficult.
3. Men who like sports
If the male is obese, the temperature at the hip and thigh groove will increase after sitting for a long time, which is not conducive to the growth and development of sperm. Therefore, men should put an end to bad habits during pregnancy.
A woman who tends to have sons.
1, women who have been pregnant for a long time
Related studies have found that the longer a woman is pregnant, the more likely she is to have a boy. This is because Y sperm itself is smaller and more flexible, so it is easier to combine with eggs through cervical mucus, and naturally it is easier to have boys.
2. A woman with her husband around.
The study found that if the husband is with him, he is more likely to have a boy. The reason for this phenomenon is that there are certain differences between the lifestyles of women who are accompanied by their husbands and those who live alone, so the gender of future generations will naturally be different.
3. A woman with a good memory
If there is a baby boy in the belly, it is not easy for pregnant women to forget, but if there is a baby girl in the belly, it is more likely to forget. However, this is only a proportional relationship, not an absolute relationship, so women with good memories are more likely to have boys.