Post Date November, 16 2024
When many men want to have children, they always find themselves without children, so they must be alert to the crisis of azoospermia in their lives.
Compared to 1940, it decreased by half in 940, with an average annual decrease of 1%. Decades later, humans may experience a crisis of listlessness. Li Haisong, a male specialist at Beijing University of Traditional Chinese Medicine, is very concerned.
Li Haisong said that the incidence rate in Europe and the United States is 10%~15%, of which 30%~40% is related to men. China has the potential to catch up with Europe and the United States. Therefore, the concept of azoospermia crisis has been proposed in the world.
According to a report by the British Medical Research Association in 2002, the number of sperm in British men has decreased by half in the past 50 years. American experts predict that by 2040, half of American men will be infertile. In Japan, males aged 30-50 have 84 million sperm per milliliter of semen, while males aged 20 only have 46 million sperm. The sperm quality survey of 549 college students in Chengdu concluded that the incidence rate of future infertility of unmarried male college students in this area may be higher than the 12%~16% recorded in the current literature, or even more than 1/3 ".
In the human sperm bank of Henan Province, the donors are all college students. However, out of 328 sperm donors, only 37 met the donation requirements, accounting for only 11.3%.
Behind the azoospermia crisis is the negative impact of sperm killers in daily life. Heat is an important factor affecting testicular spermatogenic function.
Professor Jia Jinming from Guang'anmen Hospital said that the temperature at which testicles produce sperm is 34 ℃, which can be said to be the temperature of male fertility. Prolonged sitting, frequent wearing of tight underwear, stove workers, chefs, and other professions can lead to high scrotal temperature, a sauna or hot tub bath, and a decrease in sperm count of 1-2 weeks.
Commonly used appliances such as computers, microwaves, and mobile phones have been blacklisted for sperm health. Li Haisong stated that these appliances may generate a large number of electromagnetic waves and electron mists of different wavelengths and frequencies during use
Smoking and drinking alcohol can reduce sperm density, but the number of abnormal sperm can greatly increase. The risk of low sperm count in obese men is 60% higher than in normal individuals, and the probability of abnormal sperm is 40% higher. Chemical toxins such as dioxins can cause male animals to feminize and reduce reproductive ability.
Excessive late childbirth is also regarded by experts as one of the reasons for the azoospermia crisis. Li Haisong said that the average age at which Chinese men gave birth for the first time in 1981 was 24 years old and 8 years old. In 2003, it was 29.8 years old, and now it is over 30 years old. When I was young, I just worked hard. In my 40s, I had a house and a car but couldn't conceive. The quality of sperm is too poor
