The purpose of the study was to investigate the effect of 2.45 GHz microwave radiation (2 h/day for 35 days) on the male rat brain. MWR-exposed rats showed significantly increased comet head, tail length and tail movement, as well as decrease of antioxidant enzymes. Researchers conclude that the chronic exposure to these radiations may cause significant damage to brain, which may be an indication of possible tumour promotion.
According to American Academy of Pediatrics President Dr. Robert Block, when cell phones are used by children, "the average RF energy deposition is two times higher in the brain and 10 times higher in the bone marrow of the skull," than for adults.  A July 2008 peer-reviewed study shows that children under the age of eight absorb twice the amount of radiation into their brain tissue as adults due to their lower skull thickness. 
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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." 
Even though a phone is a great way for parents to maintain contact with their children, picking the right one isn’t always easy. Parents must address crucial factors, such as cost and control, while simultaneously appeasing their children with features such as games, apps, photos, and texting, among other things. Here are our top picks for the best smartphones and cell phones for kids, so you can keep in contact with your loved ones at all times (even if they don’t want you to). Consider pairing your chosen phone with one of the best parental control apps or, if you opt for an Android device, take a look at Google’s Family Link for more peace of mind.
The FCC has granted the industry’s wishes so often that it qualifies as a “captured agency,” argued journalist Norm Alster in a report that Harvard University’s Edmond J. Safra Center for Ethics published in 2015. The FCC allows cell-phone manufacturers to self-report SAR levels, and does not independently test industry claims or require manufacturers to display the SAR level on a phone’s packaging. “Industry controls the FCC through a soup-to-nuts stranglehold that extends from its well-placed campaign spending in Congress through its control of the FCC’s congressional oversight committees to its persistent agency lobbying,” Alster wrote. He also quoted the CTIA website praising the FCC for “its light regulatory touch.”31
Listeria monocytogenes ... was recognized as the main cause of neonatal infection, meningitis, and sepsis. Listeria infection in adult patients is related to immunocompromised systems like HIV infection, organ transplants, individuals who have received corticosteroids, and immunosuppressant drugs for their malignancies. Escherichia coli known as E coli is a common cause of life-threatening infections such as bloodstream and urinary tract infections, otitis media, and other complications.
The potential health impact of Wi-Fi, even at low exposure levels, can no longer be called into question or relativized away, not even by those studies that found no effects. The decision-makers in government, school boards, and health agencies have a responsibility to deal with the available body of research and not to be deceived by the arguments of the industry lobby or boilerplates of government institutions. Health risks are a reality. It would be particularly important to carry out further research regarding the effects on the brain and young people. The application of the precautionary principle, which is recognized in all European countries, only allows for one conclusion: Wi-Fi must not be used continuously and close to the human body. I is no coincidence that the user guide of the Telekom Wi-Fi router states: “The integrated antennas of your Speedport transmit and receive wireless signals, for example, to provide Wi-Fi connectivity. Avoid placing your Speedport in close proximity to bedrooms, children’s rooms, as well as common rooms and lounges to keep the exposure to electromagnetic field as low as possible.” In their joint appeal with regard to Wi-Fi, the Cyprus and Austrian medical associations call on decision-makers to "promote age-related rational application of digital technology and not allow at schools, particular at preschool, kindergarten and elementary schools wireless networks and opt for wired connections" (ibid). Lawmakers are called upon to adjust protective legislation to the current state of research and to support research into alternatives to Wi-Fi such as VLC technologies (visible light communication, Li-Fi).
This article is not correct. Wifi waves are just a low frequency sound wave. Everyone is having a placebo effect, or doing the equivalence of listening to music using ear buds all night by having the router too close to their heads. This article was made to play on your fears and to have you buy products like iPad radiation shields and other junk. This article is harmful to people.
In addition, earthing allows our bodies to synch with the Schumann resonance (7.83 Hz), which is earth’s own electromagnetic frequency that we are naturally built to be exposed to. A Japanese study in 2005 showed that the Schumann resonance can reduce blood pressure and produce some positive health outcomes. By synching with earth’s natural frequency, we reduce the risks of WiFi waves interfering with our bodily functions.
Cell phone safety is a top priority for people all over the world—especially those with children. There are many tips for ensuring that both you and your kids are using your cell phone or smartphone safely—from being careful when you cross the road, to learning the driving laws in your area, which way to carry your phone for radiation reduction, and monitoring and limiting the amount of time your child or teen spends using their device.