Wifi is dangerious for human
At home and at work, dozens of wireless networks are streaming invisible radio waves through your space and body. (So are the phones, computers, Bluetooth speakers and other devices that connect to them.) It’s logical to wonder—and worry—about what effect all that wireless energy might have on your health.
But while the volume and ubiquity of wireless devices is a new phenomenon, the kind of radiation they produce has been the subject of scientific scrutiny for decades, says John Moulder, professor emeritus of radiation oncology at the Medical College of Wisconsin. In 2013, Moulder coauthored a review of the existing health research on Wi-Fi. Like your mobile phone, Wi-Fi routers send and receive information using radio waves, which are a form of electromagnetic radiation, he says. The research on radio waves and human health goes back at least to the 1950s, when there were concerns about Navy servicemen being exposed to powerful shipboard radar. “We have 50 or 60 years of research into the kind of radiation associated with Wi-Fi,” Moulder says. All that research has taught us that at high frequencies, electromagnetic radiation can promote tumor growth and cancer.
The sun’s ultraviolet rays and their links to skin cancer are one example. Even at lower frequencies, very high levels of electromagnetic radiation exposure can hurt you. “But we’re talking skin burns, not cancer or tumors,” says Kenneth Foster, a professor of bioengineering at the University of Pennsylvania.