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June 8th, 2012
03:26 PM ET
6 tips for minimizing cell phone radiationEditor's note: Last summer, this article was one of the most popular on the Chart. We're republishing to share these important tips again with you. Scientists at the World Health Organization list mobile phone use in the same "carcinogenic hazard" category as lead, engine exhaust and chloroform. There haven't been enough long-term studies to make a clear conclusion if radiation from cell phones is safe, but there was enough data to persuade the WHO of a possible connection to make them upgrade the category in May 2011. Cell phones use non-ionizing radiation, which doesn’t damage DNA the way ionizing radiation does. The cell phone radiation operates more like very low power microwaves, but nobody really likes to think of leaning their face on a low-powered microwave. If the WHO’s labeling of cell phone use as "possibly carcinogenic to humans" has you alarmed, here are some quick basic tips to limit your exposure. It’s no coincidence that most cell phones come with a wired ear piece. A wired headset will automatically decrease your radiation exposure because the phone is away from the body. Every inch you can get away from the body reduces the amount of radiation you are absorbing. A wired headset may still transmit radiation through the wire – but it is a very low level. If that is a concern, you can buy a ferrite bead for just a few bucks at most electronic stores. It attaches to the wire and it absorbs any radiation traveling through the wire, reducing how much enters your body. And it’s not too inconvenient. CNN’s chief medical correspondent Dr. Sanjay Gupta said he uses an earpiece because his neck doesn’t hurt as much after being on a long phone call. Gupta: Cell phones, brain tumors and a wired earpiece Use the speakerphone This could get quite annoying, if you’re in a public place. But experts say that using the speakerphone function is helpful because you’re keeping the phone away from your brain. Every inch you can get the phone away from your body reduces the radiation. For example, holding out the cell phone by two inches drops the radiation by a factor of four, Magda Havas, an associate professor with the Institute for Health Studies at Trent University in Ontario, Canada, had told CNN. But try not to share your conversation with the whole world. Thanks. Don’t wear Bluetooth all the time Bluetooth wireless earpieces will expose you to some radiation. However, it would be much less radiation than a cell phone. The problem is that most people wear their Bluetooth all the time. And this isn’t a good look on anyone. If you use a Bluetooth device, switch it from ear to ear so you don't have too much exposure on one side. Just take it out of your ear when you aren't on the phone. Avoid radiation hot spots Cell phones don’t always emit the same level of radiation. For example, your phone will emit the most radiation when connecting to cellular towers. But a moving phone (like if you are talking while driving) will continually connect to towers that come in and out of range - and this automatically increases power to a maximum as the phone repeatedly attempts to connect to a new antenna. A weak signal will also cause your phone to work harder, giving off more radiation. So avoid using your phone in elevators, buildings and rural areas. Research shows your device emits more radiation when transmitting than when receiving. Read the fine print Most of us ignore those manuals that come with our gadgetry. But most cell phone safety manuals tell consumers to not keep the phone next to their head, or even in your pocket. Apple iPhone 4 says 5/8 inch away from the body when transmitting. And the BlackBerry Bold says to keep it least 0.98 inch from your body when the BlackBerry device is in use. If you keep it next to your body, the manufacturers can't guarantee that the amount of radiation you're absorbing will be a safe level. Don’t talk, text If you don’t want to hold the phone next to your face all the time, send text messages or use your email or messaging services if you have a smartphone. This way you avoid putting the phone to your head altogether. And our friends at CNN Tech say the general rule of thumb is that the smarter the phone, the more radiation. CNN's John Sutter contributed to this blog.
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  About this blog
Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love. Recent Comments
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There now companies that work on reducing radiations emitted by cellular phones and which work too. Lifewave is a company improving health worldwide to all individuals. People should really check it out at http://www.lwottawa.com
Not surprised that this is such a popular topic! Great suggestions here, and there are others. It's all about keeping the connection between the device and cell towers strong, and then distancing yourself from your phone when it's not.
A simple and free way to know when your exposure to your cell phone's radiation is high is to use tawkon, an Android app that tracks the phone's radiation level and then alerts you with a quick tip for lowering it. The tips include a lot of what you guys mentioned here. Great post!
Its amazing to see how many publications are out there discussing this topic...
tawkon is indeed a very convenient way to control your exposure to cellphone radiation as it runs in the background on your smartphone monitoring your exposure constantly (real-time dynamic SAR), whenever this exposure cross a predefined threshold you'll be alerted.
From statistics we have we see that, most of the people use their phones without external accessories (wired/wireless headsets) so they hold the phone close to their body... not 5/8" away....
another important point is that 90-95% of the time exposure from your phone is very low since cellular networks are spread out pretty good... BUT in the remaining 5-10% the exposure to radiation is high and could reach 500-1000 times the normal level.
for more information check out our website tawkon(dot)com
Amit Lubovsky
VP Marketing tawkon
Cellphones emit non-ionizing radiation. This type of radiation is totally different than the radiation you traditionally know, which is called ionizing radiation. Exposure from the sun, x-rays, CT scans, or even going on a transcontinental flight will expose you to ionizing radiation. Ionizing radiation is the only type of radiation known to damage DNA, leading to the possibility of cancer. The WHO and CNN are completely and utterly wrong to assume that cell-phones even remotely raise the possibility for cancer formation. Brain cancer rates, for one, have remained stable (and have even decreased) since the advent of cellphones.Thirdly, the WHO and CNN are not basing their recommendations on any true science. In fact, no scientific paper has ever found a link between non-ionizing radiation and cancer. To make these suggestions are baseless and are almost as ridiculous as saying that vaccines cause autism.
The incidence of brain cancer from radiation from cell phones may take a few more years to show, and granted it may not, but I prefer the population not be the guinea pigs on that one.
The incredible rise in autism and similar conditions correlates well with pharma's imposition of vaccines decades ago.
You can order an old fashioned handset to plug into the speaker/mic connector. How cool is that? You can also get a nexus to connect POTS devices into the system. That means your grandma's pearl-white slim-line push-button digital telephone with automatic last-number redial can be plugged into your HTC or Iphone. How cool is that if you strap that to your belt? I had one of the earliest cell phones ever made. There was a big black box in my trunk and wires going to a console strapped to the dash. When the phone rang, it also honked the horn. I had a 20" whip on the trunk that allowed me to get service in the country. I then went to a phone that plugged into the cigarette lighter. Then they gave me a bag phone. Then came the brick. Then a model much like a cordless phone. Then I got my first flip phone in the late 80's. Now I have an Iphone 4.
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There should be one more thing on the list:-
TURN OFF YOUR 3G IN YOUR CELL PHONE.. IF YOU ARE NOT USING IT.
IIf you are at home and you are using WiFi connection for your cell phone.. then you don't need 3G network that time.. You can actually turn off 3G and get less radiation and more battery life..
How can you keep a phone away from you when it's IN YOUR HAND!? Hands can also get tumors and other radiation borne illnesses.
Good grief, you folks are worried about milli and micro watt doses of RF energy, what do you think the big blast of RF from "safe" MRI is doing to you? Or the kilowatt and megawatt radio stations? Then there's the good ole Sun blasting RF at our magnetosphere for a bazillion years while we evolved from algae...
To many lab nerds with nothing to do out there but alarm folks because they're bored.
They should concentrate instead on the people killed or maimed every year because people have their noses glued to their phones instead of paying attention to their everyday environment, and come up with safety devices to mitigate those issues.
You know, the important, life saving ones.
While I agree with the spirit of your post, your claims are a bit inaccurate. Modern digital cell phones have max output power levels around 2W. When the phone is pressed against your ear, the signal strength your brain is exposed to is much higher than any of the sources you listed due to the inverse square law (with the possible exception of the MRI). That said, after many studies looking for a link between rf exposure and illness, absolutely no link has been proven to exist. Could there still be one? Possibly, though it would have to be very weak for us not to have found it already. But to date, there is no evidence of one. But if it were to be the case, it would require high rf fields to be significant. That's why it is simply a good idea to avoid putting microwave transmitters next to your brain if you can help it.
Beautiful and incredible ptohos with your iphone!!!The images look like if they were from the “National Geographic Magazine”Increedble son los resultados de sus ime1genes!!!!!Mis favoritas son las dos de arriba pero la que me deja con la boca abierta es la de las zebras, los colores y el paisaje son una hermosura, son una chulada!!!
Wrong Sciguy73. Cellphones emit a maximum of .6 watts or 600 miliwatts.
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The average power output in an urbanized area is typicially 10 times less than that and sometimes even less than that.
The cell towers, with the high gain receiver amplifers on the towers, are very efficient in receiving the low power end user phones and datacards.
If you are that concerned about the remote chance that cell phone use is linked to brain tumors then sure this is a great article. For everyone else who knows how to find factual information this is pointless and not news worthy. Non-ionizing radiation has never been linked to cancer, despite hundreds of studies.
Greetings from Ohio! I'm bored to tears at work so I decided to browse your website on my iphone during lunch break. I love the info you provide here and can't wait to take a look when I get home. I'm surprised at how fast your blog loaded on my phone .. I'm not even using WIFI, just 3G .. Anyhow, good blog!
Good to know about your blog i have visit and i am very inspired from your ideas It will be interesting to see what we learn about the use of mobile phones in the coming years.
Easy To Use Mobile Phones
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I've seen and try this new chip cal "bodywell" and among all the other stuff or suggestion that are out there I think Bodyweell is a keeper. In terms of cell phone's radiation this tiny black device can reduce the unknown risks of non-ionizing cellphone radiation.You simply stick the chip to the surface or battery case of a mobile device, and it will help balance the body's electromagnetic fields. It's great, really simple and cheap. I totally recommend see it for your self bodywellchip.com