Exposure to laptop computers might adversely affect male fertility by inducing DNA fragmentation and decreasing progressive motility, according to research presented here at the American Society for Reproductive Medicine 66th Annual Meeting.

In the first study of its kind to evaluate the effect of laptop computers receiving wireless Internet signals on human spermatozoa, researchers evaluated semen samples from 15 men. The samples were separated into 2 incubation groups: one that was exposed to a laptop computer receiving a WiFi signal for 4 hours, and another that was not.