I have just received my wifi connection home first time In my life and I can tell you it has not been a pleasant experience since installation. In the beginning my wifi router was emitting horrible smell that made me feel sick and I also experienced some kind of invasion on my body and head I did not know how to call it until the technician described it for me as being radiations. At night my brain was suffering noise and my vision freckles like that of after tv trasmission would end in the past. I do not mean to be funny but this is the best way I can describe it. And the previously described is also combined with noise in the ears. Now the smell is a bit less but it is still there. I am able to sleep but with all that noise in my head. I also suffered feeling as if very tired although I do not know if it was all due to the wifi. After that I am busy looking for safer internet connection but have not found any yet especially after I read about the hazards.
Mouse embryo 3T3 cells were irradiated with 2450 MHz continuous and low frequency (16 Hz) square modulated waves of absorbed energy. The low frequency modulated microwave irradiation yielded more morphological cell changes than did the continuous microwave fields of the same intensity. The amount of free negative charges (cationized ferritin binding) on cell surfaces decreased following irradiation by modulated waves but remained unchanged under the effect of a continuous field of the same dose. Modulated waves of 0.024 mW/g dose increased the ruffling activity of the cells, and caused ultrastructural alteration in the cytoplasm. Similar effects were experienced by continuous waves at higher (0.24 and 2.4 mW/g) doses.
Years later, a study that Leszczynski described as a “game changer” discovered that even phones meeting government standards, which in Europe were a SAR of 2.0 watts per kilogram, could deliver exponentially higher peak radiation levels to certain skin and blood cells. (SAR levels reached a staggering 40 watts per kilogram—20 times higher than officially permitted.) In other words, the official safety levels masked dramatically higher exposures in hot spots, but industry-funded scientists obstructed research on the health impacts.45
It’s been suggested that sleeping near a phone, in a home with Wi-Fi, or in an apartment building with many Wi-Fi signals can create chronic sleep problems as the constant bombardment of Wi-Fi pollution interferes with falling asleep and sleep patterns. For many, sleep deprivation is just the start for larger problems. The development of depression and hypertension have also been linked to inadequate sleep. [3]
Radiofrequency radiation from cell phones is non-ionizing and is not powerful enough to cause cancer. Ionizing radiation, including x-rays and ultraviolet light, produces molecules called ions that have either too many or too few electrons. Ions are known to damage DNA and cause cancer. Cell phone radiation, like radio, TV, and visible light radiation, is non-ionizing and lacks sufficient energy to add or remove electrons from molecules, and therefore it cannot ionize and cause cancer. [2] According to the authors of a 2005 peer-reviewed study of 3.7 million Swedish residents, a "biologic mechanism that could explain any possible carcinogenic effect from radiofrequency radiation has not been identified." [42]
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.
Wireless internet using durations: When we compare the wireless internet users regarding the duration of internet usage, there were a significant decrease of total motile sperm count and progressive motile sperm count (p = 0.032 and p = 0.033; respectively; Table 3) ... there were no significance among the semen parameters regarding the wired internet group (p = 0.128).
There is a catch, though: The Internet of Things will require augmenting today’s 4G technology with 5G, thus “massively increasing” the general population’s exposure to radiation, according to a petition signed by 236 scientists worldwide who have published more than 2,000 peer-reviewed studies and represent “a significant portion of the credentialed scientists in the radiation research field,” according to Joel Moskowitz, the director of the Center for Family and Community Health at the University of California, Berkeley, who helped circulate the petition. Nevertheless, like cell phones, 5G technology is on the verge of being introduced without pre-market safety testing.26
11. Sign out of your banking app when finished. “Don’t save your banking app ID on your device: Most apps give consumers the option to save their ID to that device. But if the smartphone or tablet falls into the wrong hands, the thief will have access to sensitive information, including balances and critical account numbers. Also make sure you sign out of the app after each session. Most apps automatically sign users out after a set time without detecting activity, but it’s safer to sign out immediately after each use.” – Stephen Ebbett, 6 Tips for Avoiding Identity Theft When Mobile Banking, About Money; Twitter: @AboutMoney

These studies are not definitive. Much more research is needed. But they raise serious questions that cast doubt on the adequacy of the FCC rules to safeguard public health. The FCC emissions cap allows 20 times more radiation to reach the head than the body as a whole, does not account for risks to children’s developing brains and smaller bodies and considers only short-term cell phone use, not frequent calling patterns over decades.
As with exposure to ‘anything’ sun, pollen, pharmaceuticals, there will be a certain percent of population that is ‘sensitive or hypersensitive’ to wifi / emf frequency. I am definitely sensitive with my husband doing his own control experiment by holding his wifi phone behind by head without my knowledge and me In pain from a piercing wave going through my head. Why is it that it must be all or nothing. There are those who will never be sick from wifi/ emf and those of us who live with it everyday.
Dr. Carlo, wrote a  Medical Alert ten years ago. He cautioned people with EMF sensitivity against relying upon widely-available EMR Protection Products to prevent the effects of EMF exposure. He noted that EMF sensitive individuals were reporting the opposite effect: people found their symptoms and/or sensitivity worsened. Specifically, severe “symptom relapses.” Dr. Carlo noted:
The aim of this study was to investigate the long-term effects of 2.4 GHz radiofrequency radiation (24h/day for 12 months) emitted from a Wireless Fidelity (Wi-Fi) system on some of the miRNA in brain tissue in male rats. The results revealed that long-term exposure of RFR radiation can alter expression of some of the miRNAs, indicating that this type of exposure may lead to adverse effects such as neurodegenerative diseases originated from the alteration of some miRNA expression and more studies should be devoted to the effects of RF radiation on miRNA expression levels.
Participation bias, which can happen when people who are diagnosed with brain tumors are more likely than healthy people (known as controls) to enroll in a research study. Also, controls who did not or rarely used cell phones were less likely to participate in the Interphone study than controls who used cell phones regularly. For example, the Interphone study reported participation rates of 78% for meningioma patients (range among the individual studies 56–92%), 64% for glioma patients (range 36–92%), and 53% for control subjects (range 42–74%) (6).
We really do not recommend any kind of chip, guard, anti-radiation "filters" or incomplete shielding case because honestly, how could they NOT provide a false sense of security? Folks could believe these products make them “invincible” against radiation so they are comfortable holding the case right up to their heads-and the radiation seeping from the back and the side of the phone case is in very close proximity to their precious brains. Oh no!
Cell phones emit radiofrequency (RF) radiation, and RF radiation has been shown to damage DNA and cause cancer in laboratory animals. A peer-reviewed Jan. 2012 study in the Journal of Neuro-Oncology concluded that RF radiation "may damage DNA and change gene expression in brain cells" in mice. [61] An Aug. 2009 meta-study found that RF radiation "can alter the genetic material of exposed cells." [62] A 2004 European Union-funded study also found that cell phone radiation can damage genes. [63] On May 26, 2016, the US National Toxicology Program (NTP) released the first results of its study on cell phone radiation, finding an increased incidence of malignant tumors of the brain (gliomas) and heart tumors (schwannomas) in rats exposed to RF radiation. [85] The NTP researchers also found DNA damage in the rats exposed to the highest levels of RF radiation. [86] On Nov. 1, 2018, the NTP released its final peer-reviewed report, concluding that there is "clear evidence of carcinogenic activity” in male rats exposed to RF radiation. [87]
In a separate study by the same Swedish team, they found more than seven times the risk among people using a cell phone more than 20 years and 6.5 times the risk for long-term users of cordless phones. As expected, most of the gliomas and acoustic neuromas were on the same side of the head, which was usually exposed to the phone. In the 2013 official report on the medical evidence for brain tumors, the International Agency for Research on Cancer concluded that radiation from cell phones is “possibly carcinogenic to humans”.