Male fecundity drops year by year 24 years old later

Male fecundity drops year by year 24 years old later
News of August 1 of London: The British scientist finds, different with common views of people, men are like women, reproduction ability drops notably with the years. According to dispatch from foreign news agency, two research which universities carries on respectively in Britain show, after the male age arrives for 24 years old, reproduction ability begins to drop year by year. Particularly, men are after 24 years old, the proportion which act as father drops by 2% every year in six months. The proportion making the wife pregnant that on the other hand, it takes more than one year, rise to 15% of or more 35 years old from 25 -year-old 8% gradually. Researchers point out, it means men are the same as women, there are reproduction biological clocks in the body, began to activate 30 years old ago. It still reveals, as the doctor makes a diagnosis and gives treatment at the time of sterility, couple's age factors should all be considered. The research investigate 8,500 married couple together, they it plans to be pregnant to born children during 91 April 1 to will it be December 31 1992, year all. Researchers point out, because the sample is large in quantity, the dependability about result is extremely high. The above-mentioned result of study is issued on the " bears " magazine published on Monday.

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