23 May 2011
"Puzzling" findings from study into cell phones and sperm
by George Atkinson 
Researchers from Queen's University in Canada have described as "intriguing," their findings that indicate cell phone use raises testosterone levels while decreasing sperm quality. The study shows that while cell phone use appears to increase the level of testosterone circulating in the body, it may also lead to low sperm quality and a decrease in fertility. "Our findings were a little bit puzzling," said lead researcher, Rany Shamloul. "We were expecting to find different results, but the results we did find suggest that there could be some intriguing mechanisms at work." The fertility issues stem from lower levels of luteinizing hormone (LH), an important reproductive hormone that is secreted by the pituitary gland in the brain.
Shamloul hypothesizes that electromagnetic waves emitted by cell phones may have a dual action on male hormone levels and fertility. Specifically, they may increase the number of cells in the testes that produce testosterone by lowering the levels of LH excreted by the pituitary gland. They may also block the conversion of this basic circulating type of testosterone to the more active, potent form of testosterone associated with sperm production and fertility, he added. The study concludes by advising that men who have been diagnosed with poor sperm quality and who are trying to have children should limit their cell phone use. Related:
Cell Phone Effect On Sperm Divides Experts
Declining Sperm Quality Linked To Ozone Pollution
Exposure to plastics reduces semen quality Source: Queen's University
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