Public Release: 

Prolonged stress can impact quality of sperm, according to Ben-Gurion U. researchers

Tests of sperm donations during military conflict indicates lower sperm motility compared to routine periods

American Associates, Ben-Gurion University of the Negev

NEW YORK...June 6, 2018 - Prolonged stress, such as that experienced during military conflict, can have an adverse impact on sperm quality, according to a new study by researchers at Ben-Gurion University of the Negev (BGU) and Soroka University Medical Center in Beer-Sheva, Israel.

The study, which was just presented at the International Summit on Assisted Reproduction and Genetics in Israel, indicated that more than a third (37 percent) of the sperm samples taken during a stressful period were found to have low sperm motility.

"Mental stress is known to have an adverse effect on fertility, but there is little research on the impact of stress on sperm quality," says Dr. Eliahu Levitas, a member of the Ben-Gurion University Faculty of Health Sciences and director of the IVF Unit at Soroka. "This study shows that prolonged stress can have an effect on sperm quality."

In general, the probability of weak motility in sperm samples taken during periods of prolonged stress was 47 percent higher. Weak motility makes it less likely that the sperm will successfully fertilize an egg.

The study included 10,536 samples donated during unstressful periods between 2009-2017, which were compared to 659 sperm samples taken during and up to two months after two military conflicts between Israel and Gaza in 2012 and 2014. The subjects' average age was 32, and 44 percent were smokers.

According to Dr. Levitas, who is also director of the Soroka Sperm Bank, "Our reasoning was that even men who heard incoming rocket warning sirens during a conflict experienced stress throughout the day over a longer period. We were surprised to discover that there is a connection between the security situation and the sperm counts."

###

Yuval Mizrakli, a BGU medical student, contributed to the study, as well.

About American Associates, Ben-Gurion University of the Negev

American Associates, Ben-Gurion University of the Negev (AABGU) plays a vital role in sustaining David Ben-Gurion's vision: creating a world-class institution of education and research in the Israeli desert, nurturing the Negev community and sharing the University's expertise locally and around the globe. As Ben-Gurion University of the Negev looks ahead to turning 50 in 2020, AABGU imagines a future that goes beyond the walls of academia. It is a future where BGU invents a new world and inspires a vision for a stronger Israel and its next generation of leaders. Together with supporters, AABGU will help the University foster excellence in teaching, research and outreach to the communities of the Negev for the next 50 years and beyond. Visit vision.aabgu.org to learn more.

AABGU, which is headquartered in Manhattan, has nine regional offices throughout the United States. For more information, visit http://www.aabgu.org

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.