Sperm are healthiest in winter


Lord of Penmai
Jul 5, 2011
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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