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Author Topic: Obese men have lower sperm count- (Aug, 2010 )  (Read 2903 times)
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Francis Umeoguaju
Expert in Bioscience Issues
Posts: 657

« on: August 23, 2010, 04:54:55 pm »

Obese men have lower sperm count- (Aug, 2010 bioscience headlines)
Young men who are obese may have a lower sperm count than their normal-weight counterparts, a new study suggests.
The findings, reported in the journal Fertility and Sterility, add to evidence tying obesity to relatively poorer quality sperm.

A number of recent studies have found that compared with leaner men, obese men tend to have lower sperm counts, fewer rapidly mobile sperm and fewer progressively motile sperm, which refers to sperm that swim forward in a straight line rather than moving about aimlessly.

But age is a "confounding" factor in examining the relationship between obesity and sperm quality. Older men tend to have lower sperm quality than younger men, and they also tend to have more body fat.

However, among the more than 2,000 men in the current study, obese men between the ages of 20 and 30 generally had a lower sperm count than normal-weight men in the same age group.

What all of this might mean for an obese younger man's chances of becoming a father is unclear. Studies have so far come to conflicting conclusions as to whether obesity actually impairs a man's fertility.

And these latest findings do not reveal whether the difference in sperm count between obese and normal-weight men would be enough to also make a difference in their fertility, according to lead researcher Dr. Uwe Paasch, of the University of Leipzig in Germany.Read more? >>
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