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marmar

(77,081 posts)
Wed Dec 5, 2012, 06:19 PM Dec 2012

Little swimmers disappearing? [View all]


The Independent / By Jeremy Laurance

Scientists Warn of Sperm Count Crisis
Biggest-ever study confirms drastic decline in male reproductive health.


December 5, 2012 |


The reproductive health of the average male is in sharp decline, the world's largest study of the quality and concentration of sperm has found.

Between 1989 and 2005, average sperm counts fell by a third in the study of 26,000 men, increasing their risk of infertility. The amount of healthy sperm was also reduced, by a similar proportion.

The findings confirm research over the past 20 years that has shown sperm counts declining in many countries across the world. Reasons ranging from tight underwear to toxins in the environment have been advanced to explain the fall, but still no definitive cause has been found.

The decline occurred progressively hroughout the 17-year period, suggesting that it could be continuing. ...............(more)

The complete piece is at: http://www.alternet.org/personal-health/scientists-warn-sperm-count-crisis



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