Sperm is immortal (sex knowledge adult novel)

In ancient times, there was a saying that "one drop of semen is equal to ten drops of blood". Romance novels also depict men indulging in women and eventually dying of exhaustion.
From the perspective of modern medicine, these descriptions are somewhat exaggerated, because starting from puberty, the male testicles will continue to produce sperm every day, in unlimited quantities until old age.
However, as age and physical condition change, the speed at which men produce sperm will also be affected. Therefore, when the speed at which sperm is produced cannot keep up with frequent sexual intercourse, they may encounter the phenomenon of no sperm to ejaculate.
A woman had lived with her boyfriend for many years and they enjoyed their sex life. Her boyfriend always ejaculated quickly. But on two occasions, after having sex at night, they went on to have sex again the next morning, but her boyfriend was unable to ejaculate. She was worried that this situation would affect their fertility after marriage.
Urologists say that the normal amount of semen ejaculated by a mature male is between 3cc and 8cc, with about 60 million to 90 million sperm per cc.
The speed at which men produce sperm decreases with age, but if middle-aged and middle-aged men have sex too frequently,
Not everyone can resume ejaculation within a short period of time after ejaculation.
Women produce a certain number of eggs in their lifetime, and once they are "used up", they are gone.
However, male testicles have the function of continuously producing new sperm, so the popular saying of "sperm exhaustion" is not entirely correct.