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American researcher expresses 5 days, as the growth of male age, the quality of its spermatozoon also can drop increasingly, not only move about speed is decelerated and the blemish that returns can easier occurrence gene to go up.

The discovery that this one discovery and the closest other research reach complements each other, just research showed a few days ago, the male is met as the growth reproduction ability of the age more and more drop, and their child also is met be born more easily to contain drawback.

The United States that makes this new discovery the Andrew · Wei Luobei of national laboratory overcomes Laolunsilifumoer to state in medium: "This considers to show, the male all the time when older age is again parturient not only difficult rate increases, and the machine rate that gene drawback contains when still can bringing about the child to be born increases. And the machine rate that gene drawback contains when still can bringing about the child to be born increases..

Researcher expresses: "This our spermatozoon considers to prove further, the age that chooses to defer unripe child will be easier to also be being meant the male bring about offspring to contain gene drawback. Even if if the man with spermatozoon taller quality bears the age too late, still also have be born the possibility of the child that contains gene drawback. This considers to make clear, the male also should take the effect that the age that he bears produces to offspring seriously. The male also should take the effect that the age that he bears produces to offspring seriously..

Since a few centuries, if the child that is delivered of when parental age is older appears blemish often is the woman by accusing, the female's fecundity can drop significantly as age growth, can disappear completely after menopause. The female is born to contain all egg, these egg cells are met as the female grow and mature.

The ovum with older age also can have drawback more easily commonly, make a female not easy not only conception and still can bring about the child to be born have gene drawback. Andrew and his work in the same placing reports in research middle finger goes out: "Although well-known, woman age growth can bring about fecundity to drop, occurrence gene of fetal abortion and child and chromosome blemish, but the relation between the growth of male age and child gene blemish did not get enough research all the time however. But the relation between the growth of male age and child gene blemish did not get enough research all the time however..

Berkeley of California of another researcher, United States is communal and healthy pay aid expresses academic Brenda Aisiken: "Our research is alluded, the male and female have biological clock of a human body likewise euqally, the biological clock that is the male only and woman are not quite same. The biological clock that is the male only and woman are not quite same..