Wednesday, November 30, 2011

Laptop Wi-Fi May Affect Men’s Sperm

Sperm exposed to a wireless Internet-connected laptop exhibited reduced motility and suffered DNA fragmentation, researchers in Argentina found. Researchers in Cordoba said a study involved semen samples from 29 healthy donors that were divided into two groups. One-half of the sperm was exposed in the laboratory to a Wi-Fi-connected laptop for 4 hours; the other half was used as a control without being exposed to the laptop. The study found the sperm samples exposed to laptop Wi-Fi showed a significant decrease in progressive sperm motility – the ability to move spontaneously and actively, consuming energy in the process – and an increase in sperm DNA fragmentation. However, levels of dead sperm showed no significant differences between the two groups, they said.