News tagged with sperm quality

Study confirms that sperm quality decreases with age

Conflicting evidence about the extent to which men's semen quality declines with age—likely lowering their fertility—is being cleared up by new University of Otago research that has collated and reviewed ...

Dec 01, 2014
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Stress degrades sperm quality

Psychological stress is harmful to sperm and semen quality, affecting its concentration, appearance, and ability to fertilize an egg, according to a study led by researchers Columbia University's Mailman ...

May 29, 2014
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Smoking changes our genes

(Medical Xpress)—The fact that smoking means a considerable health risk is nowadays commonly accepted. New research findings from Uppsala University and Uppsala Clinical Research Center show that smoking ...

Dec 17, 2013
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