亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线

Home / Health / News Tools: Save | Print | E-mail | Most Read | Comment
Male infertility rate on the rise in Shanghai
Adjust font size:

Experts say at least 100,000 men in Shanghai are suffering from infertility, because of ever-worsening environmental pollution as well as unhealthy lifestyle under higher work pressure, China Daily reported Thursday.

Radiation from cellphones, computers and other electronic devices, air, water and food pollution, combined with the sedentary lifestyle followed in cities are to blame for a possible "quality decline" of the sperm, leading to men's poor reproductive capability, Li Zheng, a urologist from Shanghai Jiao Tong University, told the newspaper.

He said he had observed less sperm motility in men's semen and even some change in the sperms' morphology over the years, which may affect successful conceptions.

"About 50 percent of failures to achieve pregnancy is due to an abnormality or possibly an absence of sperm in the male partner's semen," Li said.

"The social significance of such a problem is obviously very huge. Since many of today's young couples are the only child of their parents, they are under pressure from their parents to have children."

Across China, an estimated 8 percent to 10 percent of the reproductive population is now experiencing problems having children, Li added.

Li, also director of Shanghai Sperm Bank, said the number of couples wanting to have children through artificial insemination is on the rise, although the number of donated sperm is not enough to meet the demand.

The rate of a successful sperm donation is only 1 to 2 percent, said Li, adding that in the bank's more than five-year history only 1,000 or so people qualified as donors, who have to be "both physically and mentally" healthy.

Li said men should be more aware of preserving their sperm before any potential threat affects the quality. He advised people with testis cancers, firemen and astronauts, as well as those involved in occupation in radiology, to extract and conserve their sperm for future use.

(Xinhua News Agency April 2, 2009)

Tools: Save | Print | E-mail | Most Read Bookmark and Share
Comment
Pet Name
Anonymous
China Archives
Related >>
    1. <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>
      <thead id="556nl"></thead>

      1. <em id="556nl"><tt id="556nl"></tt></em>
        <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>

        <ul id="556nl"><small id="556nl"></small></ul>
        1. <thead id="556nl"></thead>

          亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线 人妻无码久久影视 日韩久久久久久久久久久久 精品国产香蕉伊思人在线 无码国产手机在线a√片无灬 91在线视频无码