Women have to pay attention to this and that in order to get pregnant, but we seem to forget that the relationship between pregnancy preparation and men is also closely related to the following: 6 major considerations for men before pregnancy! 1, married men engaged in spraying pesticides, herbicides and other work, at least for 70 days, should avoid their wives to get pregnant. Heavy metals such as lead, pot, aminomethyl purine, cotton phenol diao, chloropropane and other industrial chemicals affect the process of sperm production, therefore, before the wife gets pregnant, the husband should be exposed to as few of these chemicals as possible. 2, obese husbands in the process of weight loss, to avoid getting his wife pregnant. Generally speaking, the environmental pollutants deposited in the fatty tissue, the toxic effect on people is small, but in the process of rapid weight loss, the body reserves of fat will soon be re-decomposed metabolism, and the accumulation of toxic substances in fat, but also then free out into the human blood, and thus cause direct or indirect harm to sperm. 3, the husband should not abuse drugs, not to mention the use of estrogen-containing skin cream. Many chemicals, such as estrogen, reserpine, chlorpromazine, etc. will affect the viability of sperm and increase the number of deformed sperm. 4, the husband should do not be partial to food. The production of sperm requires high quality protein, calcium, zinc and other minerals and trace elements, arginine, multivitamins and so on. If you have a partial diet, the lack of these nutrients in the diet, sperm production will be affected, or will produce some low-quality sperm. 5, the husband should give up smoking and alcohol. The damage of alcohol to sperm has been familiar for a long time, and a variety of harmful substances in cigarettes can also kill sperm. You should stop drinking and smoking at least 3 months before conception. 6. Husbands should also maintain good and stable emotions and moderate exercise. If you are often depressed, worried, or irritable, it will cause cortical dysfunction, resulting in instability of the nervous system, endocrine function, testicular spermatogenic function, and sexual function, affecting the production and quality of sperm. 7, occupational avoidance, long-term engaged in chefs, drivers, welding, high-voltage electricians, oilfield mining, paint production, decoration and other types of work, should pay attention to at least three months before preparing to have children out of the work environment, change the type of occupation.