Yes, it takes a while for the symptoms to re-appear again but they all come back within 20 minutes of turning it back on. Now whenever my mom wants some rest in her own home she turns off the modem (basically Wi-fi) and can relax. The only trouble will be the “Smart Meters” the electic provider is handing out “for free” who communicate through Wi-Fi with eachother, creating a mesh. In my country we can decline it and I urge people to do so. Even if you don’t feel it, you are being exposed to it, and most likely your children.
Consider parental-control tools. There are actually two major types of parental controls. The first is family rules or guidelines that you establish with your children, and the second is technology tools provided by cellphone companies, smartphone makers and app developers. If you do use technology to monitor or limit your child’s phone activities, in most cases it’s a good idea to be up front with them and revisit it every now and then as they mature.
Wi-Fi certainly isn’t going to do you in, but something else you forgot to worry about while you were worrying about your Wi-Fi router might: put that worry to good use and make sure there are fresh batteries in your smoke detectors, that you’re planning on getting a yearly physical this year, and you floss before bed (you know, those things you’ve been putting off that might actually, sooner or later, harm you).
Things didn’t end well between George Carlo and Tom Wheeler; the last time the two met face-to-face, Wheeler had security guards escort Carlo off the premises. As president of the Cellular Telecommunications and Internet Association (CTIA), Wheeler was the wireless industry’s point man in Washington. Carlo was the scientist handpicked by Wheeler to defuse a public-relations crisis that threatened to strangle his infant industry in its crib. This was back in 1993, when there were only six cell-phone subscriptions for every 100 adults in the United States. But industry executives were looking forward to a booming future.1
The HPA also says that due to the mobile phone's adaptive power ability, a DECT cordless phone's radiation could actually exceed the radiation of a mobile phone. The HPA explains that while the DECT cordless phone's radiation has an average output power of 10 mW, it is actually in the form of 100 bursts per second of 250 mW, a strength comparable to some mobile phones.[8]

We have essentially no control over whether we live or die -- except that we should avoid dangerous behaviors like smoking, becoming obese, not wearing seat belts, texting while driving, etc. Otherwise, over a trillion cells carry on countless biochemical processes that we have no control over. One out of four people will get cancer. Beyond avoiding foolish behavior, we can't influence that risk.
Users of wireless devices are typically exposed for much longer periods than for mobile phones and the strength of wireless devices is not significantly less. Whereas a Universal Mobile Telecommunications System (UMTS) mobile phone can range from 21 dBm (125 mW) for Power Class 4 to 33 dBm (2W) for Power class 1, a wireless router can range from a typical 15 dBm (30 mW) strength to 27 dBm (500 mW) on the high end.[6]
The recent report by the International Agency for Research on Cancer (IARC) about the potential connection between cell phone use and cancer is big news to media outposts and the general public. Prior to the report, scientists told us no evidence existed that cell phones were carcinogenic. And now? According to the IARC, research now proves that there is evidence that cell phones might in fact be carcinogenic. The potential villains in this scenario are radiofrequency electromagnetic fields, which are emitted by a cell phone’s antenna, and which the agency says may be linked to two types of brain cancer.
If cell phones were causing cancer we could expect a significant rise in the rate of brain and other related cancers. According to the National Cancer Institute, there was no increase in the incidence of brain or other nervous system cancers between the years 1987 and 2005 despite the fact that cell phone use dramatically increased during those same years. [6] Between 2004 and 2010 there was still no significant change in the incidence rate of brain tumors. Between 2004 and 2010 there was a slight increase from 209 cases to 221.8 cases per 100,000 people, but this slight increase was attributed to better tracking and recording of cases. [43] During the same time period, cell phone use increased 62.7% from 182,140,362 subscribers in 2004 to 296,285,629 in 2010. [44]
Central to keeping the scientific argument going is making it appear that not all scientists agree. Again like the tobacco and fossil-fuel industries, the wireless industry has “war gamed” science, as a Motorola internal memo in 1994 phrased it. War-gaming science involves playing offense as well as defense: funding studies friendly to the industry while attacking studies that raise questions; placing industry-friendly experts on advisory bodies like the World Health Organization; and seeking to discredit scientists whose views depart from the industry’s.21
The increasing use of Wi-Fi in schools and other places has given rise to public concern that the radiofrequency (RF) electromagnetic fields from Wi-Fi have the potential to adversely affect children. The current study measured typical and peak RF levels from Wi-Fi and other sources in 23 schools in Australia. All of the RF measurements were much lower than the reference levels recommended by international guidelines for protection against established health effects. The typical and peak RF levels from Wi-Fi in locations occupied by children in the classroom were of the order of 10-4 and 10-2% of the exposure guidelines, respectively. Typical RF levels in the classroom were similar between Wi-Fi and radio but higher than other sources. In the schoolyard typical RF levels were higher for radio, TV and mobile phone base stations compared to Wi-Fi. The results of this study showed that the typical RF exposure of children from Wi-Fi at school is very low and comparable or lower to other sources in the environment.
Anything you can do to keep the phone away from your head will help. (Even cell phone manufacturers warn consumers about this. See the previous post Cell Phone Manual Warnings for examples of warnings from Samsung, Apple and more.) If you hold the phone 2 inches away, the signal is about one-fourth the original strength. At four inches away, it’s about 1/16th as strong. Even better is a hands-free kit with a wireless air tube nearest the earpiece. (A regular wired headset can act as an antenna and make matters worse.)

We do have evidence that cellphones (or WiFi) do NOT cause an increase in brain tumors. Look at the time period over which cellphone use became common -- say, over the last twenty years. During that time, the incidence of brain tumors has remained absolutely flat. With over four billion people using cellphones (or WiFi) today, if there was any influence on the development of brain tumors, we would be seeing that by now.

Although melatonin and L-Carnitine offer a nutritional defense, they don’t block exposure. And that’s very hard to accomplish anyway. Look at coverage maps from cell phone companies, or notice how many Wi-Fi networks your smart phone prompts for you to join. We’re surrounded and bombarded by electromagnetic radiation. Blocking exposure is difficult but there are a few small steps you can take. For one, do not keep cell phones, laptops, and tablets close to your body. And if it’s not being used, shut them off (your wireless router too). There are also a number of devices available to counteract electromagnetic frequencies. Check out these ways to protect yourself from laptop radiation and cell phone radiation, too.
Foster was Moulder’s coauthor on that 2013 review of Wi-Fi’s health effects. He says that, based on our current understanding of radio wave strengths and risks, world health authorities have set safety standards for all devices and appliances that emit electromagnetic radiation—from phones and microwaves to your car’s keyless entry fob. “The exposure you get from your Wi-Fi router is orders and orders of magnitude below those safety limits,” he explains.
5. “Claw” your fingers around your phone. “This tight grip will make it harder for anyone to snatch your phone out of your hands. Not sure how to master the claw? No worries! CNET gives a great explanation: ‘Grip the phone securely in your hand, fanning out your fingers so that you’ve formed a protective cage or claw around the phone.’ For even more claw-like protection, you can weave your fingers around the device.” – Kyle Therese Cranston, 4 Tips for Keeping Your Cell Safe on Public Transportation, Edenred Commuter Benefit Solutions; Twitter: @CommuterBenefit