Published in the medical journal Fertility and Sterility, the study looked at how radiation emitted from wi-fi laptops impacts sperm health. Researchers in Argentina took semen samples from 29 healthy men, and they measured sperm motility after four hours of exposure to wi-fi radiation from a laptop wirelessly connected to the internet. Sperm in the control group was kept at the same temperature for the same amount of time, but was not exposed to wi-fi radiation.
Of the sperm exposed to the wi-fi radiation, 25 percent stopped swimming. Only 14 percent of unexposed sperm ceased to swim after four hours. Wi-fi sperm also showed 9 percent DNA fragmentation, or irreversible damage in the genetic code, while sperm in the control group only showed 3 percent.