Women Aren’t the Only Ones With a Biological Clock

by Jon Henshaw

It’s well known in the scientific community that a woman’s ability to conceive fades after the age of 35. However, recent research has suggested that men also have a biological clock for their fertility. News in Science reports:

A man’s fertility appears to decline after the age of 40, in much the same way that a woman’s ability to conceive fades after 35, say French researchers.

Dr Elise de La Rochebrochard and team, from the French national health institute INSERM, report their findings in the May issue of the journal Fertility and Sterility.

Their study, of nearly 2,000 couples undergoing fertility treatment, found that pregnancy attempts were 70% more likely to fail when the man was age 40 or older than if he were younger than 30, regardless of his wife’s age.

Read the full story: Male biological clock probed

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This entry was posted on Thursday, May 25th, 2006 at 9:24 am and is filed under Infertility. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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