1, avoid wearing tight underwear, jeans. The tight underwear, pants will make the scrotum close to the lower abdomen, not only to make the scrotum temperature rise affect the testicular spermatogenic process, and easy to cause testicular stasis, hypoxia, local microcirculation disorders, hindering spermatogenesis. Therefore, in order to maintain a good growth environment for sperm, fertile men try to wear loose, breathable underwear. 2, avoid high temperature environment. Long-term hot baths, saunas and high-temperature jobs (such as boilers, steelmakers, kilns) expose the scrotum to high temperatures and degenerate the testicular spermatogenic epithelium, affecting sperm production. In addition, the epididymis is close to the upper and posterior edge of the testis, and it has the function of storing and nourishing sperm. The epididymis can cause a decrease in the number and vitality of sperm under high temperature. Infertility caused by high temperature environment is generally reversible. As long as you stay away from bad environment and pay attention to your lifestyle, you will have no problem to have a healthy baby. Men who have the habit of taking hot baths and saunas and desire to have children should change and take warm showers instead. The long term work in the high temperature conditions of the male should be in the pregnancy of children before a period of time to transfer the type of work, away from the high temperature environment. 3, avoid staying up late playing cards. A variety of modern lifestyles pose a threat to male fertility, such as staying up all night playing cards, all-night Internet, nightclubs and so on. The growth and development of sperm is carried out at night, the night people are too tired to affect the growth of sperm, easy to appear less sperm, weak sperm. Long time sitting playing cards, so that the scrotum is squeezed, blood flow is not smooth, affecting testosterone secretion. Testosterone is the power of sperm production, insufficient power is sperm production is hindered. Long-term card playing is often accompanied by excessive smoking and drinking alcohol or carbonated beverages, which are detrimental to testicular sperm production. Therefore, for men who are ready to have children, they should get up early and go to bed early, live a regular life, and stop staying up late playing cards and surfing the Internet. 4, avoid long-term driving, cycling. Long-term driving, sitting so that the scrotum is squeezed, venous reflux is blocked, the blood vessels near the testicles thicken, stasis of blood can lead to varicose veins, varicose veins and testicular metabolism generated by waste can not be removed in a timely manner, but also do not get enough oxygen, affecting the normal secretion of testosterone. Prostate fluid and seminal vesicle fluid constitute the main components of semen. Insufficient semen volume and reduced seminal plasma reduce the quality of sperm. 5, cleanliness and self-love, to eliminate impure sexual intercourse. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. In addition, can affect the function of the accessory gonads, resulting in insufficient semen secretion, lack of nutrition, sperm vitality naturally reduced. 6, avoid smoking alcohol, carbonated beverages. Smoking has a significant impact on sperm growth, maturation and the proportion of deformed sperm. Some studies have shown that the longer you smoke, the higher the incidence of sperm malformations, the number of normal sperm decreases, and sperm vitality is reduced. Alcohol is a gonadotoxin, excessive or long-term alcohol consumption can poison the gonads, damage the testicular interstitial cells, resulting in reduced testosterone secretion, affecting normal spermatogenesis. Long-term alcohol abuse can lead to decreased libido, sperm deformities, and even impotence. Carbonated drinks can directly kill sperm and affect male fertility. If injured sperm and eggs combined, and can lead to fetal malformations, or congenital deficiencies. 7, it is advisable to eat food rich in zinc and selenium elements. The element zinc is an important component of a variety of human enzymes and is directly involved in a wide range of male reproductive physiological processes, maintaining sexual function, improving sperm count and vitality, and participating in testosterone synthesis. The abundant zinc in semen plays a vital role in maintaining sperm vitality. Selenium plays an important role in the formation and maturation of sperm, which can increase sperm vitality, prevent premature disintegration of sperm and facilitate the union of sperm and egg. 8, avoid prolonged exposure to radiation environment. Long-term exposure to radiation (such as electromagnetic radiation, x-ray radiation) can adversely affect sperm production and male fertility, reducing sperm concentration and swimming ability. It should be noted that cell phones and computers are sources of radiation, and men of childbearing age need to control the time of continuous use.