Some time ago, the news of “sperm bank sperm shortage” spread like wildfire on the internet. The news is that the full liberalization of the two-child policy has caused the sperm bank, which is already in short supply, to reach the level of no goods available. The person in charge of the Shanghai Human Sperm Bank debunked the rumors, although the sperm bank has been in short supply, but far from running out. In order to encourage more people to join the sperm donor team, two or three years ago the national sperm bank has increased the reward amount, at present, in Shanghai sperm donor up to 6000 yuan subsidy. Unfortunately, the medical pass rate for sperm donors is declining, with three quarters of them being eliminated during medical examinations. According to the 2012 White Paper on China’s Male Sperm Quality Survey, about 40 million men and women nationwide suffer from infertility, accounting for about 12-15% of the population. The semen quality of men in China is declining at a rate of 1% per year! What exactly are the bad factors killing the Chinese sperm? 1, obesity: overweight men can cause the temperature at the groin to rise, damaging the growth of sperm and leading to infertility. 2, sedentary: when sitting, the male genitalia of the perineum receives pressure, long-term pressure will affect the blood circulation in its area, causing testicular stasis and varicocele in the long run, affecting sperm quality. 3, frequent hot water bath: the temperature of the scrotum is about 1 ℃ lower than the normal body temperature, which is conducive to the generation and development of sperm. If frequent hot water baths, the scrotum is in a high temperature state, which affects sperm production. 4, wear tight pants for a long time: scrotal heat and sweat is obstructed, testicular temperature rises, while hindering the blood circulation in the scrotal area, resulting in testicular stasis. Therefore, you should not wear any style of tight pants. 5, often long-distance cycling: when riding a bicycle, the center of gravity leans forward, the seat just presses the male perineum, long-distance cycling, testes, epididymis, seminal vesicles and prostate are subject to prolonged extrusion ischemia, edema, inflammation, affecting the production of sperm and the normal secretion of prostatic fluid and semen and cause infertility. In addition, the bumps and shocks of cycling can directly damage the male genitalia. 6, improper diet: tea, coffee or carbonated beverages intake of excessive caffeine, cotton producing areas long-term consumption of untreated cottonseed oil, food intake of organic pesticides, rust removers, fumigants, etc., or certain metal elements such as cadmium, aluminum, arsenic, mercury and other chemical factors, as well as a variety of food additives, picky eating and malnutrition resulting in zinc and selenium deficiency, can lead to abnormal sperm production and development. Among them, the trace element zinc can promote sperm motility, can prevent premature disintegration of sperm and facilitate union with the egg. Selenium is also an indispensable trace element in the human body and comes almost entirely from food. Japanese medical researchers observed 1000 cases of male infertility and found that 37 cases had insufficient selenium content in the semen. 7, smoking, alcoholism, drug addiction: nicotine in tobacco has the effect of reducing the secretion of sex hormones and killing sperm. Chronic alcoholics, 70% of the sperm stunted or loss of motility. Drug addiction not only leads to infertility, the human body systems will be affected. 8, drug factors: such as chlorpromazine, promethazine, aspirin, anti-inflammatory pain, cyclophosphamide, vincristine, methyldopa, quazepam, etc. 9, intercourse factors: improper or too frequent although the testes can produce hundreds of millions of sperm per day, but the sperm must also be in the epididymis to develop and mature. After an ejaculation, it takes 5 to 7 days to restore the number of fertile sperm. Therefore, too frequent intercourse leads to a low number of sperm per ejaculation, which can cause infertility. In addition, interrupted intercourse, excessive masturbation or irregular intercourse can also lead to abnormal congestion of the sexual organs, which is not conducive to sperm production. 10, more sexual partners: our infertility experts pointed out that too many sexual partners, the infection rate increased significantly, triggering inflammation of the reproductive tract will bring a series of chain reaction. 11, emotional and mental factors: work study is too intense, encounter stress anxiety depression, etc. can cause sexual dysfunction by inhibiting hypothalamic pituitary function, etc. 12, kitchen fumes: recent studies have found that kitchen fumes have 74 kinds of chemicals that can cause mutations in cells, leading to infertility, becoming the “family killer” new “evidence of guilt”. They found that fruit flies fed with condensed oil from kitchen fume hood cups, the mutation rate of cell chromosomes is 0.54%, and 2.8% of fruit flies are sterile, which indicates that their reproductive system is significantly damaged. 13, special jobs: lack of proper protection in hot work, or exposure to industrial dust, physical radiation and chemical toxins, etc., will affect male fertility. 14, long-term use of electronic products with radiation, such as cell phones: studies have shown an overall decline in the quality of male semen over the past 100 years. One of the factors may be related to the electromagnetic radiation emitted by cell phones. In the face of such a crisis, should: 1, more exercise exercise, weight control, strengthen the resistance. 2, wear cotton breathable loose underwear, avoid sedentary, avoid long-distance cycling. 3, less hot tubs, less saunas, steam baths. 4, quit smoking and alcohol detoxification, less tea, less coffee, less carbonated drinks, hygienic and clean diet, comprehensive and balanced nutrition. 5, do not abuse drugs, long-term use of drugs consult a doctor. 6, husband and wife life pay attention to health science, single sex partners, family harmony. 7, learn to self-relaxation, more communication, more communication, timely consultation with a psychiatrist. 8, work well in protective measures. 9, regular medical checkups. Sperm donation, like blood donation, is an act of public welfare, and should attract the attention of society and encourage the active participation of men who meet the criteria. If you are a Chinese male between the ages of 20 and 45, please donate sperm for the sake of the country.