Turning off WiFi will reduce wireless radio frequency (RF) EMF radiation. However, make sure to turn off your WiFi router along with disabling the WiFi processor on your mobile devices. This is especially important at night, when you should either turn your router off or sleep with it at least 12 feet away. While your router emits EMF at a high power level (to travel across your house), your smart phone or tablet is constantly sending out signals to search for and connect to a nearby router, even if there aren’t any powered on nearby. So while turning off your WiFi is helpful if you are within 12 feet of the router, it’s not doing much if your phone and other devices are still right next to you sending out RF signals. Read this blog for more information on WiFi routers.