The purpose of this study was to investigate the oxidative damage and protective effect of garlic (daily 500 mg/kg during study period) on rats exposed to low level of electromagnetic fields (EMF) at 2.45 GHz Microwave radiation (MWR) for 1 h/day for 30 consecutive days. Researchers concluded that low level EMF at 2.45 GHz MWR increases the DNA damage in both brain tissues and plasma of the rats whereas it increases protein oxidation only in plasma. They also be argued that the use of garlic decreases these effects.

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Exposure to non-thermal radio frequency radiation from Wi-Fi and cellular phones can disrupt normal cellular development, especially fetal development. A 2004 animal study linked exposure to delayed kidney development. [4] These findings were supported by a 2009 Austrian study. In fact, the disruption of protein synthesis is so severe that authors specifically noted, “this cell property is especially pronounced in growing tissues, that is, in children and youth. Consequently, these population groups would be more susceptible than average to the described effects.” [5] In short, bathing the developmentally young in Wi-Fi increases their risk of developmental issues.
The present work investigated the effects of prenatal exposure to radiofrequency waves of conventional WiFi devices on postnatal development and behavior of rat offspring. Ten Wistar albino pregnant rats were randomly assigned to two groups (n=5). The experimental group was exposed to a 2.45GHz WiFi signal for 2h a day throughout gestation period. Control females were subjected to the same conditions as treated group without applying WiFi radiations. After delivery, the offspring was tested for physical and neurodevelopment during its 17 postnatal days (PND), then for anxiety (PND 28) and motricity (PND 40-43), as well as for cerebral oxidative stress response and cholinesterase activity in brain and serum (PND 28 and 43). Our main results showed that the in-utero WiFi exposure impaired offspring neurodevelopment during the first seventeen postnatal days without altering emotional and motor behavior at adult age. Besides, prenatal WiFi exposure induced cerebral oxidative stress imbalance (increase in malondialdehyde level (MDA) and hydrogen peroxide (H2O2) levels and decrease in catalase (CAT) and superoxide dismutase (SOD) activities) at 28 but not 43days old, also the exposure affected acethylcolinesterase activity at both cerebral and seric levels. Thus, the current study revealed that maternal exposure to WiFi radiofrequencies led to various adverse neurological effects in the offspring by affecting neurodevelopment, cerebral stress equilibrium and cholinesterase activity.
Because of this physical law, even if  holding a Wi-Fi router directly against your forehead was very dangerous (and, we assure you, it is not) working in your home office 45 feet away from the Wi-Fi router would not be dangerous simply because the microwave radiation of the already minuscule 1 watt Wi-Fi router would have radically decreased in intensity. When you factor in that the Wi-Fi radiation is already harmless, you see that there is no situation in which the Wi-Fi signal from your router, your laptop, your media center, or any other Wi-Fi device in your home could possibly hurt you.
Last night unfortunately I had to sleep part of the night near a wifi router, and I felt I was being fried… as if been cooked in a microwave oven (though I never experienced that). I could hardly sleep at all until I moved (into the garden). I felt like my ovaries were directly being damaged, and felt that cyst or tumour growth would start if under longer exposure.
Electromagnetic Fields (EMF) are invisible. You can’t see, touch, or feel them, but doesn’t mean they’re not there. As awareness about possible negative effects of wireless energy grows, curiosity simultaneously rises. More and more people ask me about how far they need to be and where the optimal placement is of their routers are for they’re health and safety.
The possible effects of RF-EMR due to cellular phone and Wi-Fi usage should be investigated by researchers in more detail because the harmful effects should be proven instead of just implying the possible detrimental effects. Our findings display contrast results when we compared them with existing information and beliefs. We have not seen any difference between sperm parameters and cell phone and wireless internet usage. Larger population based studies combined with the laboratory results are needed to reach a definitive conclusion.

c) and before you raise the argument that visible light is itself electromagnetic radiation, with even shorter wavelengths than microwaves, electromagnetic radiation within the visible light range does not penetrate living cells and other molecular materials as X-Rays (ionising radiation) or microwaves (non-ioninsing radiation) do. Practically all visible light is reflected by our bodies, and therefore it’s energy is not absorbed by our cells and is therefore harmless.
RF Safe methodologies for shielding the cell phone radiation only use technologies to deflect radiation which is directed towards the user’s body and will not cause the phone to increase output power. RF Safe’s technical goal is only blocking RF radiation that your body would have absorbed (line-of-sight radiation, in relationship to the device itself and your body) — radiation absorbed into your body wasn’t helping the cell tower connection or your health either. Keeping this in mind, only the front shielded part of the phone should be facing your body at all times.

“If you're looking for ways to limit your exposure to the electromagnetic emissions from your cell phone, know that, according to the FTC, there is no scientific proof that so-called shields significantly reduced exposure from these electromagnetic emissions. In fact, products that block only the earpiece—or another small portion of the phone—are totally ineffective because the entire phone emits electromagnetic waves. What's more, these shields may interfere with the phone's signal, cause it to draw even more power to communicate with the base station, and possibly emit more radiation.”

 I have treated patients with cancer for over thirty years as a board-certified radiation oncologist and I am familiar with every carcinogenic agent known to man. I'll tell you with absolute certainty that radio waves cannot harm you (unless perhaps you were in the path of a multi-megawatt microwave beam, in which case they might cook you. But as far as I know, there is no likelihood that this danger even exists).

The RF signals from cell phones, as well as Bluetooth and WiFi, are considered nonionizing forms of radiation. That means unlike ionizing radiation—from, say, ultraviolet light from the sun, medical tests such as CT scans or X-rays, or nuclear explosions—they don’t carry enough energy to directly break or alter your DNA, which is one way cancer can occur.

In addition, electrical and electronic devices of all kinds emit EM fields around their working circuits, generated by oscillating currents. Humans are in daily contact with computers, video display monitors, television screens, microwave ovens, fluorescent lamps, electric motors of several kinds (such as washing machines, kitchen appliances [like electric can openers, blenders, and mixers], water pumps, etc.) and many others. A study of bedroom exposure in 2009 showed the highest ELF-EF from bedside lights and the highest ELF-MF from transformer devices, while the highest RF-ELF came from DECT cordless phones and outside cellphone base stations; all exposures were well below International Commission on Non-Ionizing Radiation Protection (ICNIRP) guideline levels.[16]
Based on the DNA damage results determined by the single cell gel electrophoresis (Comet) method, it was found that the% tail DNA values of the brain, kidney, liver, and skin tissues of the rats in the experimental group increased more than those in the control group. The increase of the DNA damage in all tissues was not significant (p>0.05). However the increase of the DNA damage in rat testes tissue was significant (p<0.01).

The present study was undertaken to determine the influence of low intensity microwave radiation (900, 1800, or 2450 MHz for 2h/day, 5days/week, for 60 days) on oxidative stress, inflammatory response and DNA damage in rat brain. Low intensity microwave exposure resulted in a frequency dependent significant increase in oxidative stress markers, reduced levels of GSH and SOD, increased levels of pro-inflammatory cytokines, and significant DNA damage in microwave exposed groups compared to controls. In conclusion, the present study suggests that low intensity microwave radiation induces oxidative stress, inflammatory response and DNA damage in brain by exerting a frequency dependent effect. The study also indicates that increased oxidative stress and inflammatory response might be the factors involved in DNA damage following low intensity microwave exposure.

The scientific evidence that cell phones and wireless technologies in general can cause cancer and genetic damage is not definitive, but it is abundant and has been increasing over time. Contrary to the impression that most news coverage has given the public, 90 percent of the 200 existing studies included in the National Institutes of Health’s PubMed database on the oxidative effects of wireless radiation—its tendency to cause cells to shed electrons, which can lead to cancer and other diseases—have found a significant impact, according to a survey of the scientific literature conducted by Henry Lai. Seventy-two percent of neurological studies and 64 percent of DNA studies have also found effects.52

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“In addition to protecting your phone from scratches and breaks, a basic case can help conceal a distinctive phone’s telltale markings. That’s a detriment if you’re trying to show off your handset’s badass styling, but a benefit for maintaining a lower profile. Note: Even though they look better, a flashy designer case is like sticking a “steal me” marquee on your phone.” – Jessica Dolcourt, Keep Your Phone from Getting Stolen (and What to Do If It Is), CNET; Twitter: @CNET