How to ensure the birth of boys

It stands to reason that the older you get, the higher your chances of having a daughter. This is because the number of sperm with Y chromosome in male semen will decrease with the increase of age, so the probability of giving birth to a girl is particularly high, and the older the woman is, the alkaline secretion in the uterus will gradually decrease due to the influence of aging, and the probability of giving birth to a girl will also increase greatly. Diet control method: Eat more alkaline foods, or foods containing more potassium and sodium, such as sweet potatoes, potatoes, fruits, chestnuts, soda biscuits and snacks without cream, and have a greater chance of having boys. The adoption of diet control should start one month before the birth of a child, so that an alkaline environment will be formed in the woman's body after conditioning. If you want to have a boy, give up smoking first. It is easy for a man to have a boy. The more stressful a married man is at work, the more likely he is to have a girl. This is because the testicles are affected by strong changes in air pressure, temperature or water pressure, or they inhale too much toxic anesthetic gas, or under work pressure, the weaker Y chromosome will die first, which leads to more chances of having girls. Alkaline factors tend to give birth to boys. Sperm with X and Y chromosomes swim at different speeds in different pH environments. Sperm with Y chromosome is more active in alkaline environment, while sperm with X chromosome is more active in acidic environment. Therefore, if the couple want to have a girl, change the pH of the vagina: cleaning the vagina with 2%-2.5% soda water before sleeping together can increase the chances of having a boy. Acetic acid can be diluted with a small amount of clean warm water, and then a woman's vagina can be cleaned to make it acidic. On the contrary, have a boy. Female orgasm is easy to give birth to boys: normal female vagina is usually strongly acidic, which will turn acidic after the first orgasm and weakly acidic after the second orgasm. Semen is alkaline, which will enhance the alkalinity of vagina when women reach orgasm, and is more suitable for the growth of sperm with Y chromosome. Therefore, people who want to have a boy should try their best to create an orgasm and increase the chance of making the vagina alkaline. Master ovulation period: master ovulation time by measuring basal body temperature. Generally, there is a boy in the same room near ovulation time. Control the number of sexual intercourse: if the number of sexual intercourse is small, the amount of sperm injected each time will be large, and the chances of having a boy will be great. If the man ejaculates when the woman reaches orgasm and ejaculates around the woman's cervix, it is easy to have a boy. I always hope that boys and girls can choose for themselves. However, so far, determining human sex depends on natural selection. However, with the development of science and technology, people have found through long-term research that the key to determining the sex of a fetus is male X and Y sperm. X-type sperm likes acidic environment, with weak activity, slow action and long survival time, while Y-type sperm likes alkaline environment, with strong activity and fast swimming, but short life.