Sperm are healthiest in winter

vijigermany

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Sperm are healthiest in winter

Autumn is the time of year most associated with bumper crops of babies, and according to an Israeli study, there may be a scientific reason for it: Human sperm are generally at their healthiest in winter and early spring.
Based on samples from more than 6,000 men treated for infertility, researchers writing in American Journal of Obstetrics & Gynecology found sperm in greater numbers, with faster swimming speeds and fewer abnormalities in semen made during the winter, with a steady decline in quality from spring onward.

"The winter and spring semen patterns are compatible with increased fecundability and may be a plausible explanation of the peak number of deliveries during the fall," wrote lead researcher Eliahu Levitas from Ben-Gurion University of the Negev in Beer-Sheva in Israel.

If there is a seasonal pattern, they said, that knowledge may "be of paramount importance, especially in couples with male-related infertility struggling with unsuccessful and prolonged fertility treatments."
For the study, Levitas and his colleagues analyzed 6.455 semen samples.
 

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