The best things you can do are to dramatically lower the EMF radiation in your home by using less wifi, using ethernet instead, and a ton of other steps. Check out my posts “11 Ways To Reduce Computer EMF Exposure,” “11 Ways To Reduce EMF Exposure,” and “How To Eliminate EMFs In The Bedroom” for a whole wealth of helpful tips at lowering your exposure to EMF radiation.
5. “Claw” your fingers around your phone. “This tight grip will make it harder for anyone to snatch your phone out of your hands. Not sure how to master the claw? No worries! CNET gives a great explanation: ‘Grip the phone securely in your hand, fanning out your fingers so that you’ve formed a protective cage or claw around the phone.’ For even more claw-like protection, you can weave your fingers around the device.” – Kyle Therese Cranston, 4 Tips for Keeping Your Cell Safe on Public Transportation, Edenred Commuter Benefit Solutions; Twitter: @CommuterBenefit
These general findings and data presented earlier on Wi-Fi effects were used to assess the Foster and Moulder (F&M) review of Wi-Fi. The F&M study claimed that there were seven important studies of Wi-Fi that each showed no effect. However, none of these were Wi-Fi studies, with each differing from genuine Wi-Fi in three distinct ways. F&M could, at most conclude that there was no statistically significant evidence of an effect. The tiny numbers studied in each of these seven F&M-linked studies show that each of them lack power to make any substantive conclusions.
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!
Another animal study, in which rats were exposed 7 days per week for 19 hours per day to radiofrequency radiation at 0.001, 0.03, and 0.1 watts per kilogram of body weight was reported by investigators at the Italian Ramazzini Institute (35). Among the rats with the highest exposure levels, the researchers noted an increase in heart schwannomas in male rats and non-malignant Schwann cell growth in the heart in male and female rats. However, key details necessary for interpretation of the results were missing: exposure methods, other standard operating procedures, and nutritional/feeding aspects. The gaps in the report from the study raise questions that have not been resolved.

I've spent years tackling subjects from urban health to medical marijuana to behavioral science—both as a city reporter for my hometown public radio station in Tulsa, Okla., and as a freelance writer. Now I cover health and food at Consumer Reports. My hobbies include tinkering with computer code and watching trashy TV. Follow me on Twitter: @catharob. 
All values were far below International Commission on Non-Ionizing Radiation Protection’s (ICNIRP) reference values, but most mean levels measured were above the precautionary target level of 3–6 µW/m2 as proposed by the Bioinitiative Report ….however the ICNIRP guidelines are based on short-term heating (thermal) effects, and are therefore not relevant to decide on the appropriateness of long-term exposure.
This experiment investigated the effects of 2.45 GHz microwave radiation exposure (2h/day for 35 days) on the developing rat brain.The study revealed a statistically significant (p < 0.05) decrease in protein kinase C activity in hippocampus as compared to the remaining portion of the whole brain and the control group, while a similar experiment conducted on hippocampus and the whole brain gave a similar result. Electron microscopic study shows an increase in the glial cell population in the exposed group as compared to the control group. This present study is indicative of a significant change after exposure to the above-mentioned field intensity, which suggests that chronic exposures may affect brain growth and development.

43. Search for the unknown callers. Discovering unknown or anonymous numbers on your child’s phone can be alarming, but a bit of detective work can lead you to answers. “Now that you know who your kid chats with, you can see if there are any messages that make you suspicious. If you spot a phone number you don’t recognize, do a reverse phone lookup to discover exactly who they are talking to. By searching any domestic number, you may discover the texter’s name, carrier, and address.
Carlo sent letters to each of the industry’s chieftains on October 7, 1999, reiterating that the WTR’s research had found the following: “The risk of rare neuro-epithelial tumors on the outside of the brain was more than doubled…in cell phone users”; there was an apparent “correlation between brain tumors occurring on the right side of the head and the use of the phone on the right side of the head”; and “the ability of radiation from a phone’s antenna to cause functional genetic damage [was] definitely positive….”8
Supermarkets or plant nurseries (plants); WiFi hotspots are available in many homes and commercial establishments. If the student does not have a wireless device that displays WiFi signal strength, an inexpensive standalone wireless signal detector may be purchased on the Internet. Plant lights may be purchased on the Internet and at garden supply stores.
We couldn't find one legit EMF expert online or anywhere else that would recommend a radiation blocking case or anti-radiation case. Not the Environmental Health Trust or Magda Havas, or Joel Moskowitz, in fact his site, safeEMR cautions against scams and claims for radiation protection.  So if a so-called "EMF expert" is recommending any kind of anti-radiation case, they probably aren't that much of an expert. 
35. Check your child’s cell phone records. “Review cell phone records for any unknown numbers and late night phone calls and texts.” While it may feel as though you’re snooping on your kids, reviewing their calling and texting records can help you identify warning signs such as strange calling patterns or unfamiliar numbers that could indicate that your child is communicating with someone they shouldn’t be such as a potential predator. – Help children use cell phones safely, NetSmartz Workshop; Twitter: @NetSmartz
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).

Research on glioma brain tumors shows the average latency period is 20-30 years. [56] 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. [44] [71] 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, [57] but the average user in the study had less than eight years of cell phone exposure. [56] 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." [58]
Results Renal tissue malondialdehyde (MDA) and total oxidant (TOS) levels of pre-natal group were high and total antioxidant (TAS) and superoxide dismutase (SOD) levels were low. Spot urine NAG/creatinine ratio was significantly higher in pre- and post-natal groups (p < 0.001). Tubular injury was detected in most of the specimens in post-natal groups. Immunohistochemical analysis showed low-intensity staining with Bax in cortex, high-intensity staining with Bcl-2 in cortical and medullar areas of pre-natal group (p values, 0.000, 0.002, 0.000, respectively) when compared with sham group. Bcl2/Bax staining intensity ratios of medullar and cortical area was higher in pre-natal group than sham group (p = 0.018, p = 0.011).
If you’ve bought a computer any time in the last 5 years, there is almost a certainty that it has wifi built in. We’re far past the days of getting separate wifi cards or adapters for our computers. The problem is, Wifi does emit RF radiation, a type of EMF radiation that is very harmful. Whether you have a desktop computer or a laptop that you use, it likely uses Wifi, so let’s take care of that.
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.