5 sex tips for having a boy or girl

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　　Tips for having sex with boys and girls 1: intercourse temperature

　　German researchers tracked birth records from 1946 to 1995 and compared local temperature changes. The results showed that April to June were the months with the most male babies born, while October was the month with the fewest male babies. The reason why temperature affects the baby's gender is that the researchers' hypothesis is that high temperature will affect the gender of the baby. sperm The X chromosome makes it difficult for a baby girl to be born； Low temperature will affect the Y chromosome of sperm, making it difficult for a boy to be born.

　　Tip 2 for having sex with a boy and a girl: Find the right time

　　The vagina, which is usually acidic, becomes alkaline when it is close to the day of ovulation. Taking into account the properties of X sperm and Y sperm, purposefully choosing the date of intercourse may achieve the effect of controlling gender to some extent. Abstinence from sexual intercourse (about 5 days) until the day of ovulation before having sex can improve fertility. boy opportunity.