Radiation syndrome acute chronic Health physics Dosimetry Electromagnetic radiation and health Laser safety Lasers and aviation safety Medical radiography Mobile phone radiation and health Radiation protection Radiation therapy Radioactivity in the life sciences Radioactive contamination Radiobiology Biological dose units and quantities Wireless electronic devices and health Radiation Heat-transfer
The objective of this study was to evaluate the effects of radiofrequency radiation emitted from an internet-connected laptop via Wi-Fi for 4 hours on human sperm motility, viability, and DNA fragmentation. Donor sperm samples, mostly normozoospermic, exposed to a wireless internet-connected laptop showed a significant decrease in progressive sperm motility and an increase in sperm DNA fragmentation. We speculate that keeping a laptop connected wirelessly to the internet on the lap near the testes may result in decreased male fertility.
Since children’s skulls are thinner than adults’ and their nervous systems are still developing, researchers believe they may be at a greater risk for cell phone-related cancers. They’ll also be exposed to the potentially harmful radiation significantly longer than their parents’ generation. Until more is known about the possible carcinogenic effects of cell phone use, curb your kids’ cell phone habits by encouraging texting or using a landline instead—if they can actually recognize a landline anymore, that is.
Users of wireless devices are typically exposed for much longer periods than for mobile phones and the strength of wireless devices is not significantly less. Whereas a Universal Mobile Telecommunications System (UMTS) mobile phone can range from 21 dBm (125 mW) for Power Class 4 to 33 dBm (2W) for Power class 1, a wireless router can range from a typical 15 dBm (30 mW) strength to 27 dBm (500 mW) on the high end.
The CERENAT study, another case–control study conducted in multiple areas in France from 2004 to 2006 using data collected in face-to-face interviews using standardized questionnaires (18). This study found no association for either gliomas or meningiomas when comparing regular cell phone users with non-users. However, the heaviest users had significantly increased risks of both gliomas and meningiomas.
Like cell phones, routers use radio frequency (RF) energy—a form of electromagnetic radiation—to bring wireless internet to your computer, TV, and other devices. Bluetooth headphones and speakers also rely on RF signals to play music. Smartwatches use RF to connect to your phone. And any WiFi-connected smart devices in your home also receive and transmit data using this type of energy. Do you need to worry about any of that?
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What the study showed: Most published analyses from this study have shown no statistically significant increases in brain or central nervous system cancers related to higher amounts of cell phone use. One analysis showed a statistically significant, although modest, increase in the risk of glioma among the small proportion of study participants who spent the most total time on cell phone calls. However, the researchers considered this finding inconclusive because they felt that the amount of use reported by some respondents was unlikely and because the participants who reported lower levels of use appeared to have a slightly reduced risk of brain cancer compared with people who did not use cell phones regularly (4–6).
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.
The frequency of radiofrequency electromagnetic radiation ranges from 30 kilohertz (30 kHz, or 30,000 Hz) to 300 gigahertz (300 GHz, or 300 billion Hz). Electromagnetic fields in the radiofrequency range are used for telecommunications applications, including cell phones, televisions, and radio transmissions. The human body absorbs energy from devices that emit radiofrequency electromagnetic radiation. The dose of the absorbed energy is estimated using a measure called the specific absorption rate (SAR), which is expressed in watts per kilogram of body weight.
Purpose: This article is a systematic review of studies on the effects of non-ionizing radiation at the microwave (MW) frequency of 2.45 GHz (2450 MHz), which is predominantly used in WLAN/Wi-Fi applications (wireless local area network) and microwave ovens. Newer WLAN standards also use the frequency ranges of 5 GHz, 6 GHz, and 60 GHz. WLAN, referred to generically in this review also as Wi-Fi, has become the technology of choice for many wireless applications because providers do not require a license, making the service free to users. To meet users’ desire to be online all the time, more and more WLAN antennas (access points, femtocells, routers) emitting pulsed 2.45 GHz radiation are being installed at libraries, hospitals, hotels, airports, railway stations, shopping malls, public places, and in buses, subways, and passenger trains. Wi-Fi consoles are used to play games. Office and household appliances are also fitted with Wi-Fi antennas. Residential routers often contain two Wi-Fi transmitters. As part of its digital learning initiative, the German Conference of Ministers of Education has decided to provide all schools with Wi-Fi networks. The extensive body of research on the health risks of Wi-Fi radiation is generally not considered by policy-makers or in the public debate.
The present study focused on the possible gender-related effects of Wi-Fi electromagnetic fields on these processes in human males and females. P300 amplitude values at 18 electrodes were found to be significantly lower in the response inhibition condition than in the response initiation and baseline conditions and independent of this effect, within the response inhibition condition there was also a significant gender X radiation interaction effect of males in comparison to female subjects only at the presence of EMF. In conclusion, the present findings suggest that Wi-Fi exposure may exert gender-related alterations on neural activity associated with the amount of attentional resources engaged during a linguistic test adjusted to induce WM.
2. The power, or heating effect, of the phone is only one of many possible factors impacting cell phone ‘safety.’ Certainly it is useful to know if your phone has a high SAR value, but exposures to the radiation from the cell phone at non-heating levels have been linked to many serious biological effects, and the SAR value is not capturing anything about these harmful non-thermal exposures.
I wish I could do the same thing, but I cannot demand that my neighbors turn off their Wi-Fi. They have ipods, iphones and ipad, other neighbor is using a laptop and I have new neighbors (since a 3/4 of a year or so) that have their pc next to my bedroom. I thought I was going crazy, I never got any true rest, even after sleeping for 8+ hours. I never have that feeling that your body actually got some rest and your mind feels refreshed.. now the days just flow into eachother and it feels like a neverending nightmare. I stumbled across the reason what could be the cause by sleeping over at my mom’s place. She has her router in the middle of her livingroom and has been complaining about suffering from fatique for over 6 years. Also irratic heartbeat, headaches, feeling of despair and other symptoms. She’d been at the doctor’s but they could never establish a cause. Just to try something I turned off her router(which had Wi-Fi) and began to realize all the “tension” I felt inside my head started to fade away and when looking inside the room I could almost “feel” the objects again and that moment I asked my mother how she felt and she told me “somehow I feel a lot lighter and my headache seems to go down” From that moment on I’ve become aware of the danger that Wi-Fi has influenced my every day life. Some people have no problems while others are almost pariahs since the people not feeling anything do not understand what we are going through. Sorry for the long read but I just want to let other people know they are not alone. Even if it feels like it. I think another symptom is making people extremely introverted and insecure. I hope the authorities will start taking action soon because I cannot live like this for another 10 years. Hugs for everyone.
In 2008, the most surprising news article reported that Dr. Ronald Herbermann, the director of the University of Pittsburgh Cancer Institute, advised his 3,000 faculty and staff to keep the cell phone away from the head by using a headset and to keep children from using cell phones except in emergencies. He cites unpublished scientific studies as the source of his concern.
Cell phone cases can make matters worse because they may block the phone’s antenna. The device must work harder to transmit signals which may lead to more radiation exposure for the user. (See safety tip #6 for more on the importance of a strong signal.) Certification testing done by phone manufacturers are done with bare phones with no accessories.
Studies conducted by numerous scientific teams in several nations have raised troubling questions about possible associations between heavy cell phone use and serious health dangers. The World Health Organization has declared that cell phone radiation may be linked to brain cancer. Ten studies connect cell phone radiation to diminished sperm count and sperm damage. Others raise health concerns such as altered brain metabolism, sleep disturbance and behavioral changes in children.
When the Interphone conclusions were released in 2010, industry spokespeople blunted their impact by deploying what experts on lying call “creative truth-telling.” “Interphone’s conclusion of no overall increased risk of brain cancer is consistent with conclusions reached in an already large body of scientific research on this subject,” John Walls, the vice president for public affairs at the CTIA, told reporters. The wiggle word here is “overall”: Since some of the Interphone studies did not find increased brain-cancer rates, stipulating “overall” allowed Walls to ignore those that did. The misleading spin confused enough news organizations that their coverage of the Interphone study was essentially reassuring to the industry’s customers. The Wall Street Journal announced “Cell Phone Study Sends Fuzzy Signal on Cancer Risk,” while the BBC’s headline declared: “No Proof of Mobile Cancer Risk.”37
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.
was since I had Wi-Fi that it had started so turned it off and after a few days I had improved just to check I turned it back on and immediately I felt the effect and stared feeling ill. I no longer go to my sons as he lives in a block of flats with lots of signals also have avoid shops and areas with Wi-Fi cannot visit friends and family even church, I’ve had to put foil on my walls to reduce the neighbours signals, feel like a prisoner and can hardly go anywhere, really hard when needing doctors, dentist, hospital, council etc. I’m sick of it now there’s no need for so much and one day more people will suffer these affects.
Now, what if I took that already precious treasure and stuck it in case that substantially increased the accumulation of value in one place by adding my driver’s license, MetroCard, ATM card, and credit card to the package? What if such a case made it possible to combine the pain of losing my phone with the inconvenience of losing my wallet in a brief moment of carelessness? We need not wonder, because that’s exactly what a wallet case does.
Don’t text or handle your phone while driving. Texting or even touching your phone while driving is dangerous and illegal in many states. If you must speak on the phone, use a speaker or headset and hands-free controls. Never text, send or read email or post online and if you use your phone for navigation or listening to music or podcasts, set it before you leave or use hands-free voice recognition.
“It’s because WiFi is just a low frequency sound wave.” For me, the jury is still out concerning the link between WiFi and sleep disturbance. But I’m sorry, you are wrong about WiFi being a low frequency sound wave. It is a radio wave, i.e. electromagnetic, and it runs at 2.3 GHz and/or 5 GHz, which cannot by any stretch of the imagination be described as low frequency.
This investigation concerns with the effect of low intensity microwave (2.45 and 16.5 GHz, SAR 1.0 and 2.01 W/kg, respectively) radiation on developing rat brain when exposed for 35 days. Results showed that the chronic exposure to these radiations caused statistically significant (p<0.001) increase in DNA single strand breaks in brain cells of rat.
Question for Dr. Group & Associates. What is the interaction of EMF and vaccines? There has to be a connection, either unintentional and intentional, with the metals included in the vaccine ingredients, how they interact with the EMF and the resultant effects on the human body. As if we were being turned into antennas to in a more enhanced manner, receive the transmissions and output. This could have a connection with the documented and patented EMF behavior modification technologies.
Sixteen years later, cell phones -- with 6 billion subscriptions worldwide and counting -- have revolutionized how we communicate. The technology that powers them has changed just as dramatically. Today’s smartphones vibrate, rock out, show high-def movies, make photos and videos, issue voice commands, check email, go underwater, navigate with global positioning systems and surf the web in 3-D. They sport dual core processors and batteries that let you – or your kid -- talk for close to 20 hours. (The StarTac maxed out at just 3 hours.)
Keep in mind that even if someone doesn’t have access to your phone, it might be possible for them to access your online account. Online accounts can include your wireless carrier account, call logs, your email or social media accounts, your Google Play/Apple AppStore, or iCloud account. Update the passwords and security questions for those accounts to ensure someone else can’t get access.
Present study was under taken to predict the possible DNA damages (genotoxicity) and carcinogenicity caused by radiofrequency radiations (RF) to living tissue. Dry seeds of chickpea were treated with GSM cell phone (900 MHz) and laptop (3.31 GHz) as RF source for 24 and 48 h. Untreated seeds were used as (0 h) negative control and Gamma rays (250 Gray) as positive control. Plant chromosomal aberration assay was used as genotoxicity marker. All the treatment of RF inhibits seed germination percentage. 48 h laptop treatment has the most negative effect as compared to untreated control. A decrease was observed in mitotic index (M.I) and increase in abnormality index (A.I) with the increase in exposure duration and frequency in (Hz). Cell membrane damages were also observed only in 48 h exposure of cell phone and laptop (RF). Maximum nuclear membrane damages and ghost cells were again recorded in 48 h exposure of cell phone and laptop. The radiofrequency radiations (900 MHz and 3.31 GHz) are only genotoxic as they induce micronuclei, bi-nuclei, multi-nuclei and scattered nuclei but could be carcinogenic as 48 h incubation of RF induced fragmentation and ghost cells. Therefore cell phones and laptop should not be used unnecessarily to avoid possible genotoxic and carcinogenic effects.
In the spirit of adventure, I tried the snazzy TwelveSouth case pictured in this post, and I admit, there were some things I liked. I got very used to not carrying around a bulk in my back pocket. I even put my keycard for the office in it, and it felt very futuristic to unlock the office door by holding my phone up to the fob sensor. But in the end, I took the case off before a trip. It just seemed too foolish to risk losing everything at once.
And, it’s not just sperm. The results of an animal study suggest that some wireless frequencies may prevent egg implantation. During the study, mice exposed 2 hours a day for 45 days had significantly increased oxidative stress levels. The cellular damage and impact on DNA structure from exposure suggest a strong possibility of abnormal pregnancy or failure of the egg to implant. 
RF radiation, which includes both radio waves, and microwaves, is at the far end of the electromagnetic spectrum and is a low energy wave. This makes RF and microwave radiation a form of “non-ionizing radiation” which just means that there is enough energy to move the atoms in a molecule around and cause friction, but not enough energy to actually remove a charged particle (ionizing).
Most mobile phones come with a charger upon purchase, but sometimes the phone outlasts the charger. Cell phone chargers also have a history of being left behind at work, home or at a hotel room when you need them the most. Make sure that you have an extra one on hand when you need it, and consider adding a charger that you can use in your vehicle. Chargers are powered either with a wall adapter or via a USB adapter that connects to a PC, tablet or similar device. Car chargers are usually powered by connecting it to the vehicle through the DC connector, which is located in or around the vehicle's dash.
The king is dead — long live the king. If you’re looking for a smartphone that doesn’t break the bank and won’t sting too much if it’s lost, but still offers good performance, then Motorola’s G-range is usually where you’d start. This year, the Moto G6 has upped the ante, delivering a glass-and-metal design that your sprog won’t be ashamed to be seen with. A protective case is included in the package, but you might want to pick from our range of the best Moto G6 cases, since glass is prone to breaking.
Joel Moskowitz (@berkeleyprc) of the University of California, Berkeley School of Public Health, US, says: “This is the largest technological experiment in the history of our species, with potential health risks we still know next to nothing about.” This view is shared by Denis Henshaw, professor of human radiation effects at Bristol University, UK, who said: “Vast numbers of people are using cell phones and this could be a time bomb of health problems.”