In the outpatient clinic, I once met an old man and his young wife. The old man got divorced in middle age, and his ex-wife took away his only child. Now that he is in his twilight years and has a lovely wife, he has the idea of having another child.
In fact, when the old gentleman found me through a friend’s introduction, he was a little embarrassed and didn’t know how to speak.
Later, the 30-year-old wife became even more generous and said straight to the point: \”Dr. Yu, we want a child of our own, but he is already 56 years old. I don’t know if he will care about the child.\” Will it affect your health and IQ? We have been using contraception and want to consult you before we decide. If it will affect the child, we can do it without it.\”
That\’s it! I smiled and suggested that they take a pre-pregnancy check-up first. If there are no factors that are inappropriate or affecting fertility, they can have a child of their own.
The little wife’s eyes suddenly brightened: “Really? But he is so old, will his sperm also age?”
Okay, I admit that many people will If you think sperm will age as you get older, let me tell you the secret of sperm.
As the saying goes, \”A man is a flower forty-one and a woman is a piece of shit for forty.\” Many female friends are very reluctant to hear this sentence. It seems to contain strong sexism. In fact, it is Scientifically based.
When this sentence is used to explain the fertility of both men and women, it couldn\’t be more appropriate. Women have a strict reproductive biological clock. Once they are over 35 or 40 years old, not only does their fertility decline, but the risk of conceiving a fetus with defects (such as congenital malignant syndrome) will also increase. This is due to chromosome mutations that occur with age. Caused. After the age of 50, ovulation stops and fertility is no longer an option.
But men are a different kind of scenery. There have long been records of \”eighty-year-old men giving birth to children\” in ancient Chinese books. There are also living examples in modern times, such as a nearly 90-year-old birthday boy in Guangxi 20 years ago. I love being a father. It is also common in foreign countries. For example, there was an old man in Sweden who lived for 120 years, remarried at the age of 85, and gave birth to 8 children.
In fact, it is often said that there is no limit to the number of years a man can have children. Experts in Munich, Germany, took 20 elderly men aged 60-89 and 20 young men aged 24-33 as observation subjects. They tested their semen respectively and made comparisons. The results showed that the sperm of the elderly men did not age, and Sperm density (average 120 million per milliliter of semen) is also higher than that of young men (averageThere are only 78 million per milliliter of semen).
However, the American magazine \”Human Reproduction\” said that there is indeed a \”biological clock\” in the male body. As age continues to increase, male fertility gradually declines. Compared with the limited number of female eggs, men\’s ability to produce sperm is much stronger. However, the \”swimming ability\” of older men\’s sperm is obviously insufficient compared with that of young men.
Dr. Andrew Worobec, in the magazine, said: \”Obviously, as age increases, sperm activity becomes slower and slower. It is generally believed that men can have children even when they are 80 years old. This is In fact, it is very one-sided.\” Sperm swimming weakens by about 0.7% every year. When a man is 22 years old, the proportion of sperm swimming abnormalities is only 25%, and by the age of 60, this proportion has increased to about 85% .
So, although the sperm density of older men will be greater than that of young men, the proportion of sperm swimming abnormalities is also increasing. Obviously, older men will have more difficulty getting women pregnant than young men, but that is not the case. It\’s totally impossible, it just needs better timing. This is the biggest difference with women. Once women experience amenorrhea, they have no chance of having children.
On the other hand, although men’s spermatogenic ability can continue into old age, the fact that sperm is relatively fragile cannot be changed. Especially in modern society, while high technology has brought unprecedented development to human society, it has also had an impact on human fertility and has a great impact on male sperm quality. Here, I would like to give some small advice to expectant fathers.
1. Leeks are called \”aphrodisiac grass\” by Chinese medicine, but today\’s leeks can no longer be compared with the leeks of the past. Leeks are exposed to a lot of pesticides during their growth cycle, and they are difficult to remove. Here I suggest that fathers-to-be who use leeks as an aphrodisiac to help their sexual performance should eat less unless they are safe leeks grown by themselves.
2. The pesticides on the skin of vegetables are the most difficult to remove. No matter how heated, it is difficult to decompose the remaining pesticides. Therefore, vegetables with skins must be peeled first, then washed, and then put into the pot.
3. The caffeine in coffee has a certain impact on male fertility, especially if you drink too much every day, it will be more harmful, so drink less.
4. Drinking tea is good for human health, but in recent years, the pesticide content in tea has seriously exceeded the standard, so it is not advisable to drink too much tea.
5. Try to eat less fruits, vegetables and meats ripened by hormones. Today\’s meat products are polluted to varying degrees due to their raw materials, and fish in rivers and seas have also suffered the same fate, but we must eat them. Don\’t just eat a certain type of food. You should eat all types of meat. If possible, try to eat natural green foods to achieve balanced nutrition.
6. Hot meals and dishes served in foam plastic lunch boxes can produce toxic substances called dioxins, which are particularly harmful to the human body and have a direct impact on male fertility, so try not to use foam plastic lunch boxes. Serve and heat meals.
This article is provided by Baidu Reading and is excerpted from \”Very Good Pregnancy: Doing This\”Conceiveable\” Author: Yu Yue\’e