Since the 1990s, the quality of human semen has declined significantly, which has attracted great attention around the world.The results of relevant experts show that the quality and quantity of adult male semen in my country also decreased significantly, and this region with a significant reduction in cities than rural areas and higher industrialization, the larger the reduction.
Semen analysis is an important indicator for evaluating male reproductive abilities.Sperm is a terminal product developed by the male germ cell line.DNA is damaged during the formation of sperm, and it is not easy to repair after injury.On the other hand, sperm is more sensitive and more vulnerable to various poisons compared to other body cells.
The decrease in the quality of semen directly leads to a decrease in human fertility.The incidence of congenital defects such as the current rate, abortion rate, reproductive system tumor and neonatal urethral cracks has increased significantly, and the incidence of abnormal sexual development such as precocious puberty and female feminine has also been on the rise.Some relationships.
Human sperm is easy to be damaged and difficult to repair, making many factors a common sperm "killer":
Environmental pollution has one type of "environmental hormone", also known as "hormone -like" and "endocrine interference substances". It is a chemical with estrogen -like estrogen characteristics in the environment.After entering the human body, they will act on multiple aspects of sperm development, leading to decreased sperm development malformation, quantity and quality, greatly reduced female conception, and even lost their fertility.
There are many types of pollutants containing environmental hormones. They mainly exist in pesticides, fertilizers, pesticides, detergents, plastic products, plasticizers, asbestos, chemicals, automobile tail gas, waste incineration gases, certain heavy metals, and cosmetics.EssenceAmong more than 200 compounds that people often come into contact with, more than 60 % have irreversible toxicity to sperm, and more than 20 professional poisons can also harm sperm.
Due to the increasingly serious environmental pollution, the number of men's semen has been reduced by half in the past 50 years.The acute or chronic poisoning caused by environmental pollution can reduce the activity of enzymes in the testicular, affect the process of sperm, increase the proportion of deformity sperm, and its vitality, penetrating power, and the pregnancy rate are declining.
High -incidence people engaged in radioactive work, high -temperature operations, and long -term contact with toxic substances such as paint, coatings and mercury, lead, and phosphorus are all high -incidence people.The proportion of fertility is about 40 % of the sperm quality and quantity loss.
It can be said that environmental pollution is the first killer of sperm.It has a greater threat to humans: it is latent, durable, and irreversible, and it is not easy for people to perceive its harm in a short time (several years, ten years).
Smoking alcoholic
Nicotine in cigarettes can kill sperm, cause sperm dysplasia, increased the proportion of deformed and defective sperm, and can even cause the sperm chromosome to sudden mutation, causing changes in genetic genes.Too much smoking can also cause increased thiocyanic acid in semen, thereby suppressing the mobility of sperm.The survey found that the longer the smoke age, the greater the amount of smoking, the less sperm, the higher the deformed rate of sperm, and the lower the ability of sperm activity.If you are preparing to be a healthy baby, it is best to quit smoking from three months to half a year before the plan to conceive.
Alcohol has a strong poisoning effect on reproductive cells, which can damage sperm and affect the development of the embryo.Long -term drinking can cause decline in male fertility.It has been proven that alcohol can slow the synthesis of testosterone, affect the normal metabolism of testosterone, cause low reproductive gland function, affect the production of sperm and the quality of semen.Some people in Western countries like to drink alcohol. They often drink drunk on Sunday. Babies born in pregnancy after the same room at night are called "Sunday Babies".These babies are often weak, dysplasia, and even deformity or dementia.Therefore, it is best to drink less or not even drink less than two or three months before planning to ensure the quality of sperm.Men's excessive drinking can also cause or temporarily incompetence.
Diet
Sperm production requires the supply of nutrients, and malnutrition or unevenness all directly affect the generation of sperm.The relationship between cholesterol, arginine, zinc, and fertility in nutritional ingredients is the most closely related.Cholesterol is an important raw material for synthetic hormones; arginine is a necessary component for sperm formation; zinc is an important trace element of the human body. The zinc content in semen is nearly 100 times higher than the plasma.Zinc directly participate in the sugar and oxidation process in sperm, maintain the integrity and permeability of the sperm cell membrane, and maintain the vitality of the sperm.The deficiency of zinc will lead to testicular atrophy, decreased sperm quantity, and reduced sexual function. In severe cases, it will even lose fertility.
American medical experts have concluded that the newlywed men will be killed directly to the three different formulas sold on the market. After drinking the drink, the newlywed men will be directly killed, which will affect the reproductive ability of men.Once the injured sperm is combined with the egg, it may cause fetal malformations or inherently inadequate.
The following foods are conducive to improving sperm quality: carrots, garlic, kelp, mushrooms, mung beans, catfish, loach, squid, fish, eel, sea cucumber, cuttlefish, yam, ginkgo, tofu, tofu skin.
Temperature is too high
Sperm production requires lower temperature.The testicular can produce sperm in the scrotum with a lower temperature than the lower body temperature.For example, the testicles of patients with intangible test disease are not in the scrotum, but on the other parts of the body with an irreversible damage that is 2 to 3 degrees Celsius than the 2 to 3 degrees Celsius.Therefore, any clothing, living habits, and environment with high temperature of the genital parts may reduce the number of sperm and even cause infertility.If you are engaged in high temperature operations and used to take a bath with overheated water, often take sauna baths, and often wear tight jeans with curves, etc., are worse for male infertility.
Certain drugs
Anti -tumor regulating cyclumamide, long -chunkine, collateral pastonine that treats gout, and thunderous vine, which treats rheumatoid arthritis, can cause sperm -growing disorders.Monotonine oxidase inhibitors, antihypertensive drugs, aspirin, ketoconazole, glycol, etc. can affect the production of sperm.Preservatives and hydrogen peroxide in food have a certain toxic effect on sperm.Antipatenopathy sodium has the effects of inhibiting pituitary glandular gonad hormones, indirectly affecting the production of sperm.Testosomin can inhibit the function of the lower machin brain and inhibit the process of sperm.
Ray irradiation
Sperm cells are very sensitive to radiation. If they are directly irradiated by radiation, the number of sperm cells can gradually decrease.However, the degree of damage is related to the strength of the ray and the length of the irradiation time: the strength of the rays is weak and the damage caused by the shorter time may be mild.Excessive or too long may cause irreversible infertility.Long -term exposure to radiation, such as radiation technicians and nuclear energy staff, can be suppressed by sperm production due to the effect of radiation, and can cause sperm chromosome distortion.
Mighty
The work pressure is high, the body is often in fatigue, irregular life, poor mental state, tension and anxiety emotion can directly affect the nervous system and endocrine function, causing the testicular germ function to disorders.
(Editor in charge: Internship Liu Suqiong)
