Digital data show that nearly 50 years to gradually reduce the number of male sperm. United States lafu·duoerdi study of dazhou in the Robert Frost University found that United States men reduced the number of sperm in the past half century of almost one-third.
Sperm intermediate value of 90 million/ml in 1929, and in 1979 in the middle value of 60 million/ml, that is half a man\'s sperm than this number, half men below this number. Doherty Professor recently investigated 132 male college students found that human sperm counts not from 23% of/ml. …… Testicle can produce every day how much sperm
Easily hurt sperm
Judging from the biological characteristics of sperm, the sperm is a product of male germ cells and development of the Terminal. In the process of spermatogenesis, formation and deformation of, due to escape of cytoplasmic, cytoplasmic DNA repair enzymes in lost, made consequent loss of DNA damage and repair system functioning. So it\'s not somatic cells and egg cells can repair themselves as 90% of the primary genetic material damage. In the various cells in the human body, only sperm has such characteristics. In addition, compared with other types of cells, sperm more sensitive to toxic substances. Always the rapid fragmentation of spermatogenic cells, males from middle and late embryos to old age, will continually generate sperm. In fast in the spermatogenic process of, all kinds of hazards of harmful factors in the accumulation and accumulation increases after. With the deepening of the study and understanding of genes in recent years, more explicit, relative to the x chromosome, gene in the y chromosome carrying more prone to mutation.
Further reading: eugenics \"seed\" VS semen preparation for pregnancy: aristogenesis ten do not
Eight killer
Apart from genetic and part organic disease, closely related to the living habits of male infertility. Able to understand or overcome those bad habits in daily life, at least to reduce or avoid the occurrence of male infertility, then what factors can result in reduced male sperm and cause infertility?
First, sexual confusion and unclean.
Sexual confusion and unclean caused male reproductive tract infections. Cause genital gonococcal infection disease original, Mycobacterium tuberculosis, viruses, Mycoplasma, chlamydia and trichomoniasis, with Mycoplasma and chlamydia infection is most common. First of all, reproductive tract infections affecting sperm and sperm transport, cause oligospermia and caused reproductive capacity to decline. Reproductive tract infection can also cause changes in sperm motility, can suppress the subsidiary gonadotropin secretion of reproductive tract infections, caused by insufficient secretion of semen, semen nutritional deficiency, pH change, semen composition change, thus affecting the growth environment of sperm, sperm viability and by serious decline in the number of infertility. …… Experts reveal secret sex life and harmony
Second, the tobacco and alcohol abuse.
Men sensitive to toxins in the smoke, alcohol, in particular germ cells are more vulnerable to victimization. Research shows that of nicotine in tobacco have reduced effect of sex hormone secretion and kill sperm. Where 30 cigarettes a day, and sperm survival rate of only 49%, smokers amount of male hormone secretion in 16% per cent less than never smokers, so that the ability to lower the production of sperm. Long-term alcohol abuse can cause damage to testicular spermatogenic cells of affect sperm production. …… Prepare dozens when Dad needs to hide bad habits
Three, thermal environment on testicular damage.
Such as long-term heat, hot water bath, long-term wear tight pants, will regulate the temperature of the scrotum function disorders. Many men showed bodybuilding build, long wear tight pants, everyone knows, tight pants and testis in the scrotum will be firmly stuck together, hanging Qiang move し big ship na ⒒ δ Nai d skirt look bad pepper cherry? local temperature increase testes, inhibit sperm production. Addition to wear tight pants will limit and hinder parts of blood circulation in the scrotum, forming testicular blood stasis, leading to infertility. Organ of the testis is to produce sperm, testicular temperature must be requested in the spermatogenic process?? 5.5 to 36.5 ° c, 1 to 1.5 ° c lower than the normal body temperature. Often use very hot water bathing, especially bath, sauna, keep the scrotum in a high temperature State, affect testicular spermatogenesis.
Further reading: \"fine\" storing sharp eugenics pregnancies: 30 kinds of breakdown of sperm die
Four, improper diet.
Nutrition lack, as vitamin-a lack, can led health fine epithelial does not long; vitamin b lack, can effect pituitary function, reduce reproductive force; vitamin c in prevent semen solidification, and keep sperm vitality aspects has must important role; vitamin e lack can caused testicular damage; calcium, and phosphorus lack can reduce reproductive ability; trace elements zinc and magnesium of lack also will on sperm of generated and the vitality produced larger effect. In addition, consumption of crude cottonseed oil, then gossypol can damage of spermatogenic cells, causing infertility; excessive consumption of celery, can also cause infertility. Thailand a doctor after 10 years of research, proof of celery have contraceptive effects, men eat 75 g cooked celery tested, after you eat 1 to 2 weeks in a row, these men will significantly reduce the number of sperm, from tens of millions of to 100 million per millilitre of semen containing sperm normally reduced to only 3,000 per ml, conceived by the sperm count is difficult to make women less so. …… 12 to sperm health diet recommendations
Five, exposure to toxic substances.
Many chemicals may affect male reproductive function. Organic insecticide: DDT, dieldrin, 666, such as pine oil hydrocarbons. Organophosphate: parathion (1605), Dichlorvos, and so on. Other fungicides, acaricides, nitroso-food additives, and so on. There are some metals such as copper, cadmium, lead and mercury.
Six, drug damages.
Modern medical research has proven that many drugs can cause male infertility, the main anti-cancer drug, antirheumatic drug, antihypertensive drugs, hormone drugs, sedatives and anesthetics (
Cannabis, heroin and other drugs). Such as cyclophosphamide may make spermatogenic function; methotrexate, adreson class preparation, Liu sulfonic effects such as decrease in sperm motility induced by nitrogen, sperm reduces; cimetidine by inhibiting testosterone secretion, indirectly reduced sperm motility. Long-term use can also decrease the sperm count of tripterygium wilfordii. …… Lycopene in treating male infertilitySeven, sexual life too frequent or inappropriate.
Although the testes can produce tens of millions of daily to hundreds of millions of sperm, but once after ejaculation, sperm after 5-7 days to mature and achieve sufficient quantities. If the number of sex too much or no restraint, less injection of sperm at a time, is not easy to conceive naturally. In addition, sexual life interrupted, masturbation or sex life of long duration, will lead to sterile prostatitis, directly affect the nutritional composition of semen and sperm motility, causing infertility. …… Relationship between frequency of sexual intercourse and eugenics
Eight, excessive contact with female substances.
With the development of social and environmental change, broad and long term exposure to low dose females material more and more, such as artificial rearing of freshwater fish, poultry, long-term consumption of these foods, as well as important reasons for the decline in the number of male sperm.
