The present study investigated the influence of 2.4GHz electromagnetic fields, similar to that emitted by Wi-Fi system, on human brain activity. The presence of radiation had no effect on the energies of alpha and beta band of male subjects, while it reduced these energies of female subjects, resulting in significantly lower energies, as compared to those of males. Delta and theta band energies did not experience any noteworthy effect from gender, radiation condition and their interaction. Conversely, there was a significant interaction effect (gender x radiation) on the energies of alpha and beta rhythms. The present data support the idea that Wi-Fi signal may influence normal physiology through changes in gender related cortical excitability, as reflected by alpha and beta EEG frequencies.
TRPV1 cation channels are the possible molecular pathways responsible for changes in the hormone, oxidative stress, and body temperature levels in the uterus of maternal rats following a year-long exposure to electromagnetic radiation exposure from mobile phones and Wi-Fi devices. It is likely that TRPV1-mediated Ca2+ entry in the uterus of pregnant rats involves accumulation of oxidative stress and opening of mitochondrial membrane pores that consequently leads to mitochondrial dysfunction, substantial swelling of the mitochondria with rupture of the outer membrane and release of oxidants such as superoxide (O2 −) and hydrogen peroxide (H2O2). The superoxide radical is converted to H2O2 by superoxide dismutase (SOD) enzyme. Glutathione peroxidase (GSH-Px) is an important antioxidant enzyme for removing lipid hydroperoxides and hydrogen peroxide and it catalyzes the reduction of H2O2 to water.
I have noticed that whenever I set the location settings so the apps can access my location, I get a fuzzy feeling in my head. This is followed by feelings of confusion for however long the setting is enabled and often continues for a while even after I switch the settings off. I have also noticed that the effect is magnified by bringing the phone closer to my head. At arms length, the effect is negilable but up close the effect is more dramatic- a space at the back of my eyes start to itch and I find it difficult to concentrate. Anyone else feel anything like this?
Of course they’re not. But they are banning wireless communication in nursery schools, because that’s new and parents aren’t entirely sure about what makes it work. Parents are, quite rightly, very worried about how any new thing will affect their children. Some things, like the effect of texting using proper grammar or how more screen time affects attention spans, are difficult to measure and we don’t really know how people will be when they grow up. But Wi-Fi as a cause of cancer or even headaches? We can test for that. We have tested for that. It’s fine.
The use of Wi-fi has increased rapidly in recent years. Through the use of this technology, electronic devices are connected to a computer network wirelessly using radio waves, or radiofrequency (RF) electromagnetic energy (EME), thereby eliminating or reducing the need for network cables. A common example is a laptop connected to the internet using a wi-fi modem at home. Wi-fi access points can also be found in schools and many public areas. People in a wi-fi enabled environment will be exposed to low level RF EME from time to time when using the network on computers and also from the access points. There is some public concern about potential health effects associated with RF EME emissions from wi-fi in homes, schools and other places.
The present study was designed to determine the effects of 2.45 GHz EMR (60 min/day for 28 days) on the brain antioxidant redox system and electroencephalography (EEG) records in rat, as well as examine the possible protective effects of selenium and L-carnitine. EMR-exposed animals showed lower concentration of vitamins A, C, and E than controls, although their concentrations were increased by selenium and L-carnitine supplementation. Animals which received selenium and L-carnitine in addition to EMR also showed lower levels of lipid peroxidation. Results indicate that L-carnitine and selenium seem to have protective effects on the 2.45 GHz-induced decrease of the vitamins by supporting antioxidant redox system.
The answer is yes, it can. Will it always make people sick? No. Dr. George Carlo explains that there is most definitely a biological response to what he refers to as Information Carrying Radio Waves (ICRW-energy fields from many wireless devices). When you're exposed to ICRW a process of adaptation and compensation occurs in your body. He has a great program that can help people adapt.
We actually debated including some links to some of the worst offenders just to show you how outlandish (and unscientific) the claims they make are, but we couldn’t stomach giving them even a penny of ad revenue. If you want to see how bad things are you can search for “Wi-Fi dangers” on Google where, it becomes clear, the page rank algorithm doesn’t always reward pages with the most scientific merit.
Research on glioma brain tumors shows the average latency period is 20-30 years.  Although cell phones were introduced in 1983, it was not until 2003 that over 50% of the US population had a wireless subscription, so the 20 year mark for mass cell phone use has not yet been reached.   The May 17, 2010 INTERPHONE study, the largest study ever to examine possible links between cell phones and brain tumors, concluded that overall there was "no increase in risk" for glioma or meningioma brain tumors,  but the average user in the study had less than eight years of cell phone exposure.  In his review of the INTERPHONE study results, Dr. Rodolfo Saracci stated that "none of today’s established carcinogens, including tobacco, could have been firmly identified as increasing risk in the first 10 years or so since first exposure." 
You are being trolled people. This article is so obviously not correct. All of the examples given are so subjective and there are hints in there that they are having a laugh at you for believing this. “When a group of Danish ninth graders experienced difficulty concentrating after sleeping” Come on, really? It wasn’t because they were playing games or chatting to their friends that their minds were too stimulated to sleep straight away?
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.
Asked for specifics, Foster says it helps to understand how Wi-Fi works. While most people assume their wireless router is constantly sending and receiving information, Foster says these devices actually transmit just 0.1% of the time. “Maybe that goes up somewhat if you’re streaming video,” he says, “but most of the time your router is just sitting idly waiting for something to happen.”
I’m so glad I stumbled on this article as I thought I was the only one around my area that gets badly affected by Wi-Fi signals. It started when I used to visit my son I would get heart palpitations and my throat felt like it was tightening up, after leaving it would eventually calm down but every time I went it got worse. I then also got Wi-Fi and was really ill for about eight weeks felt like I was slowly being poisoned, tight throat, palpitations, weakness and really bad sleep, just felt like I was dying. I then realised it
Studies by five independent research groups regarding cell phones and brain tumors have revealed significantly increased risks of a benign tumour of the cranial nerve supplying the ear. This grows slowly and must be removed in a major operation that can result in permanent facial paralysis. Other risks found were cancer of the glial cells (including neurons) of the nervous system and cancer of the meninges, the membrane covering the brain and spinal cord.