With that in mind, several school districts in the U.S. and other countries have tried to reduce exposure in the classroom to RF radiation from devices. The Maryland State Department of Education, for example, recommended in 2016 that school districts use wired networks instead of WiFi whenever possible, turn off routers when not being used, and keep routers as far away from students as possible. In France, WiFi is banned from nursery schools.
The Federal Communications Commission (FCC),  US Government Accountability Office (GAO),  and the US Food and Drug Administration (FDA),  have all concluded that there is no evidence in the scientific literature proving that cell phones cause brain tumors or other health problems. According to the FDA, "attempts to replicate and confirm the few studies that did show a connection [between cell phone radiation and head tumors] have failed." 
But this was not the message that media coverage of the NTP study conveyed, as the industry blanketed reporters with its usual “more research is needed” spin. “Seriously, stop with the irresponsible reporting on cell phones and cancer,” demanded a Vox headline. “Don’t Believe the Hype,” urged The Washington Post. Newsweek, for its part, stated the NTP’s findings in a single paragraph, then devoted the rest of the article to an argument for why they should be ignored.49
It’s also packing a decent camera, so your kid can share selfies without worrying about the quality. It’s not perfect, and the battery life might not last as long as you’d like — but Motorola’s TurboPower charging means 15 minutes of charging can give six hours of battery life. Sit your kid down to dinner and plug their phone in, and it should be more than ready to see them through to bedtime. All in all, the Moto G6 is an extremely solid phone that should serve your child well.
High frequency, specifically 2.45 GHz Wi-Fi radiation, induces a decrease in sperm parameters along with an increase in apoptosis-positive cells and caspase-3 activity in the seminiferous tubules of Wistar rats, specially in 7-hour group. It reduced seminal vesicle weight following 2.45 GHz exposure. Considering the progressive privilege of 2.45 GHz wireless networks in our environment, we concluded that there should be a major concern about the time-dependent exposure of our body to the higher frequencies of Wi-Fi antenna.
RESULTS: Data obtained from the One day test showed an increase in concentration of blood glucose, decrease in Triglyceride level and GGT factor (P<0.05), however no observed significant difference on the Cholesterol, HDL, LDL level and hepatic enzymes activities in compare to control group. Groups of the five-day test showed reduction in the amount of blood glucose, elevation of cholesterol level and LDL relative to control group (P<0.05).
The FCC’s safety standards for cell phone radiation were based on studies conducted in the 1980s, These studies have long since been rendered obsolete by newer research. Yet for years the FCC refused to update or even review its standards. Instead, the federal agency simply sat on its hands while cell phones became ever more powerful and ubiquitous.
What does this tell us about Wi-Fi? Wi-fi routers are weaker transmitters even than mobile phone masts, and users sit away from them. The level of energy produced by a Wi-Fi router is very low, far too low to be able to disrupt DNA, so there is no mechanism for it to be carcinogenic. It’s true that it’s the same frequency as microwave radiation, but it’s so low power that there isn’t even a noticeable heating effect, never mind breakdown of genetic material. The ‘hot ear’ effect that you notice after a long call comes from the battery warming up, not radiation. It’s just too weak to do anything, even if you’re sitting close to it.
Cancer is the obvious start. An early concern with mobile technology was clusters of the disease around those living near phone masts. One study in Israel found a 4.5-fold increase in cancers of all kinds in the immediate vicinity of a mast (Int. J. Cancer Prev., 2004). In 2009, a Korean team of researchers carried out a pool analysis of the results of 23 studies, which involved almost 38,000 subjects.