For boys and men, putting a laptop computer on your lap could influence male fertility. The increase in heat could cause a reduction in sperm count and thus reduce the ability to have children. Since we know laptops aren’t going anywhere, best advice is to put that laptop on a table.

Researchers from the State University of new York at Stony Brook put together the first study to combine interest in the laptop with known infertility caused by increase scrotal temperatures. Could the laptop influence temperature enough to reduce fertility?

In short, yes. Previous studies have shown that an increased temperature of one to two degrees in the testicles will reduce sperm production. This study found that laptops increased testicular temps by almost two degrees.

“We found that the scrotal temperatures rose by 2.1 degrees Celsius when the men sat with their thighs together, which is necessary to keep LC (laptops) on the lap. But, the rise was significantly higher when the LC were used – 2.8 degrees C on the right side and 2.6 degrees C on the left,” said Dr. Yefim Sheynkin, Associate Professor of Urology and Director, Male Infertility and Microsurgery at the University. “The body needs to maintain a proper testicular temperature for normal sperm production and development. Portable computers in a laptop position produce scrotal hyperthermia by both the direct heating effect of the computer and the sitting position necessary to balance the computer.”

He concluded, “Until further studies provide more information on this type of thermal exposure, teenage boys and young men may consider limiting their use of LC on their laps, as long-term use may have a detrimental effect on their reproductive health.”

Source: Human Reproduction, Medical News Today


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