What is the difference between xy sperm?

Anyone who has studied biology in high school knows that the gender of a child is determined by the man. If the man's x sperm combines with the woman's egg, the baby will be a girl. If the man's y sperm combines with the woman's fertilized egg, the baby will be a boy. Obviously, the man's x sperm and y sperm are completely different and directly determine the baby's gender. So what is the difference between these two types of sperm in men?

Differences between xy sperm:

There are two major camps of sperm: X & Y camp. In the womb, X has a longer life span and Y has a shorter life span. When swimming, X is slow and Y is fast. What other little secrets do XY have?

X≠Y quantity

There are two types of sperm in semen, one with X chromosomes and the other with Y chromosomes. Although they cannot be seen with the naked eye, these two types of sperm are actually different. And the number of X sperm and Y sperm in semen is not equal, sometimes there are more X sperm, sometimes there are more Y sperm.

Y swims fast

Medical research has found that because sperm carrying Y chromosomes contain less genetic material, some scientists believe that sperm carrying Y chromosomes swim faster than sperm carrying X chromosomes, just like thin people can run more easily than fat people. But in the world's population, the ratio of men to women is roughly the same, which means that the fast-swimming Y sperm are not the ultimate winners. Whether the baby is a boy or a girl is determined by the male's sperm motility on the one hand, and the female's physical condition also has a certain influence on the other.

XLong life

X sperm has a larger, oval head and a shorter tail. Although it is bulky and moves slowly, it has strong acid resistance and relatively strong vitality. It can survive for a long time and can survive in the uterine cavity or fallopian tube for 2-3 days after entering the vagina.

Although Y sperm is small and agile and swims fast, it has a short lifespan, is relatively fragile, and has a weak ability to adapt to the environment. If a man often works overtime, stays up late, smokes, drinks, and is too tired before conception, the Y content in his semen will easily decrease.

XY tastes different

XY are like half-brothers, each with their own tastes. X sperm prefer acid, Y sperm prefer alkali. When the vagina is acidic, X sperm has strong resistance and is more likely to combine with the egg, making it easier to give birth to a girl. When the vagina is alkaline, Y sperm is more likely to combine with the egg, making it easier to give birth to a boy.

PS: Although the acidity and alkalinity of the female vagina cannot be adjusted artificially, the probability of having a boy or a girl can be increased by carefully calculating the ovulation cycle. The closer to the ovulation day, the stronger the alkalinity of the vagina and uterus, the higher the chance of Y sperm and egg combining, and the easier it is to have a boy; conversely, the farther away from the ovulation day, the easier it is to have a girl.