Wednesday, November 24, 2010
Best male reproductive age
<p> Although men's reproductive life much longer than women, almost continuous lifetime, but from the genetic point of view, there is still the best age. </ p> <p> To sperm quality, for example, although elderly .men's sperm is. not aging, and density is quite high, but the ability to have a clear decline of momentum, motionless and malformations of the sperm count has increased by 20% the speed of the sperm metabolism has declined, had also metabolized a lot .of waste, the. negative impact on future generations. </ p> <p> In addition, men over 35 years of age, the body of the male hormone also began to decay, on average a year its testosterone secretion capacity is .decreased by 1%. </. p> Therefore, as with the woman, men also have reproductive biological clock, but a man's reproductive biological clock elastic large Bale. <p> According to the law on reproductive biological clock in men, .men when dads best? </ p> <. p> France a professor named Roger Rouse, investigated the 2000 member of the military, had found that the father 30-35 years of age born child in an intelligence test scores in the .top. </ p> He concluded that the 30-35 .- year-old man whose sperm has strong vitality, most suitable for children. <p> This argument was France geneticists friction leoch validation. </ p> MO .Lishi's research shows that age is between 30-35-year-old father born child. best. Explanation: a man's sperm quality in reached a peak at the age of 30, and then continued for five years to 35 years of age, then the .quality drops. <p> United States-obstetrics and gynaecology expert than China also finds that. the 30-year-old man is the "best father." </ p> Since that time, in addition to the physical .quality of the advantages, there are career stability, economic conditions, raising children's conditions, etc. <p> A. practical example, you must know who re-elected Prime Minister, three sessions of the United Kingdom enjoy political iron lady called Thatcher ., he was born in the United Kingdom in a grocery store, the boss of the storekeepers age birth her? 32 years old., just a man's best reproductive age in Ah! </ p> <p> More interesting facts: the .31-year-old is the man libido peak </ p> <p> Although man life has when Dad's ability, but if more. than 50 years old, will bring a lot of trouble to eugenics and even disaster, so " .; old dad, "it is not desirable. </ p> Please see medical scientists to" old dad "listed" counts "<p> ● Reduction. of wife of fertility </ p> <p> .; Study data show that men under 35 years later, the wife pregnant chances decrease 3% per year; 45 years of age than 35 men, let a woman pregnant lengthen the time required for 5 times .. </ p> <p> .; ● Increase the wife of abortion risks </ p> <p> Under the 5000 expectant of tracking survey, husband age greater than 35-year-old pregnant women during pregnancy and after 2-4 months,. the chances of a .spontaneous abortions increased 30%; 50-year-old male and 20-year-old males compared to wife the risk of spontaneous abortion occurred to double. </ p> <p> ● Increase your child's illness or even death. risk .</ p> <p> Statistics show that the child's illness and mortality as parents age, so far have found about 20 different kinds of disease and the aging of the father. </ p> <p> Listed on the .blacklist of malformations. (father over 40-year-old son, after his children more than "deformity" young father 1 times); down syndrome (also known as 21 trisomy syndrome, is a mental retardation as main manifestation of chromosome diseases) .; </ p>. <p> Type 1 diabetes (also known as insulin-dependent diabetes, father of child-bearing age, each additional 5-year-old, the child with the chance of liking for increased 9%) .; prostate cancer, osteomalacia (is because. Achondroplasia cause of hereditary osteodystrophy); </ p> <p> Mental illness (more than 50-year-old male fertility children, suffering from schizophrenia, almost 50 years of age for men .have children of their own illness, possibility of 3 times.), etc. </ p> <p> The reason is simple, as men age, as his sperm like eggs not only genetic problems arise, and let the egg insemination .capacity is greatly reduced. </ p> Men older, more poor. sperm quality, genetic variation, the more inviting disaster provoked disease likely. <p> Therefore, men want to be a father, or as soon as possible, even .if not less than 35 years old, and must not be more than 50 years old .. </ p> Remember: 50 years of age is a man's reproductive cordon, don't try to go beyond this line, the case you are .compromised. <p> Eugenics depends on men and women, thus emphasizing the husband and wife the. best combination of reproductive age is the most critical. </ p> France scientists praise the best combination of age is: women in the 25 .-30 years old, male in the 30-35 years old; at the same time, it is best. to have a couple of reproductive age difference, ie father than MOM big 6-7 years or so. <p> The reasons .are: the phase of the female body and mature, the egg quality is high, the male sperm quality are in top. condition and have sustained the high quality of 5 years, is perfect for each other, if conceived for birth, childbirth complications, .interlock, prematurity, birth defects and incidence of dementia in infants, children born to more healthy and smart. </ p>. <p> In recent years, the eugenics scientists have noticed some "wunderkind" and their parents " .age gap "is not without relevance, the most typical way to classical ballet Swan Lake" by composer Chai Ke Ziolkowski and Nobel Laureate Marie Curie. <. / p> <p> Chai Ke Ziolkowski's father than the 18-year- .old mother, Madame Curie's parents also differ by more than 14 years of age. </ p> <p> A mystery although it is still in exploration, but both. age advantage credit: father definitely older, mature, genetic intellectual relative .to the next generation of "password" and more; and mother's age, vitality, no doubt to the fetus provides a good breed environment, conducive to the growth of the fetus. <. / p> <p> There is a .saying that you are familiar with it: a man 41 flower, woman 40 rubbish. </ p> Female friends will definitely not feeling well, but ifMeans the reproductive capacity, but also it was kind of. token, you have to be convinced .. <p> The secret lies in the fact that women have strict reproductive biological clock, once more than 35 years of age or the age of 40, fertility decline, and gave birth to a defective fetus (such. as down syndrome) of .risk also increases with age, but chromosome increases resulting mutations. </ p> As for over 50 years old, stop menstruation, fertility and ovulation is stopped, not become an unalterable fact. <p> Man? it is. another kind .of "landscape," fertility age suffered less likely. </ p> Have you not living in the 90-year-old even a hundred-year-old children's news also. <p> Chinese classics, "early .on in the. octogenarian son ", modern and lively examples, such as 20 years ago in a year, nearly 90-year-old God of Hei when father. </ p> <p> It is not uncommon in foreign .countries, where Sweden has a 120 .- year-old life, 85-year-old man who is married and gave birth to eight children; one of the former Soviet Union is called the ham hull · cloth Haniyeh's 112-year-old farmer ., get married and have children, when. this is probably the oldest man in the world by the Guinness Book of records of birth. </ p> <! - AFP Control Code / Caption. left vertical banner -> < .;! - AFP Control Code End/No.- .-> <p> It is not difficult to understand that a man's reproductive life is not capped. </ p> <p> Science-based? Germany Munich .experts to 60-89-year-old male and 24 ~ 33-year-. old young men's 20 to watch object detection, respectively, of their semen, and made a comparison, the results show that older men's sperm is not aging, and .sperm density (average per ml of semen 1.2 million) was also higher among young people (. per ml of semen only 0.78 million). </ p> <p> It seems that used to describe senile man Temple of fertility, a .little too much. </ p> <p align="right"> (Practice editing: Li. Jing) </ p>..
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