People with cancer are often thinking about possible reasons for it, so they may sometimes recall their phone usage differently from people without cancer. ACS generally looks to other expert organizations to determine if something causes cancer that is, if it is a carcinogenincluding:. Different cell phones have different SAR levels.
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The authors of this study, however, did note the possibility that this link might have been due to more intensive medical investigation in long-term cell phone users because of media coverage at the time. Most of these studies have focused on brain tumors. With these limitations in mind, it is important to continue to study the possible risk of cell phone exposure, especially with regard to use by children and longer-term use.
If you know the FCC identification ID for your phone model which can often be found somewhere on the phone or in the user manualyou can also go to the following web address: www. In most cases neither type of study provides enough evidence on its own to show if something causes cancer in people, so researchers usually look at both lab-based and human studies. Large studies published in by the US National Toxicology Program NTP and by the Ramazzini Institute in Italy exposed groups of lab rats as well as mice, real the case of the NTP study to RF waves over their entire bodies for many hours a day, starting before birth and continuing for most or all of their natural lives.
More recently, the US Food and Drug Administration FDA issued a technical report based on studies published between andas well as national trends in cancer rates. Many wireless devices now communicate over shorter distances using Bluetooth technology. For safety reasons, it is especially important to limit or avoid the use of cell phones especially texting while driving. Other major organizations also sometimes comment on the ability of certain exposures such as cell phone use to cause cancer.
For example, several studies published by the same radio group in Sweden have reported an increased risk of brain tumors in people dating cell phones. One case-control study looking at children and teens did not find a ificant link to brain tumors, but the small size of the study limited its power to detect modest risks.
Texting instead of talking on the phone may be another way to reduce your exposure. But this finding was hard to interpret because some people in the study reported implausibly high cell phone use. It is possible that if there are health effects, they might be more pronounced in children because their bodies might be more sensitive to RF energy.
Third, most of the studies published so far have focused on adults, rather than children. Many factors can affect the amount of energy from RF waves that a person is exposed to, including:. A large prospective forward-looking study of nearlywomen in the UK examined the risk of developing brain tumors over a Mobile period in relation to self-reported cell phone use at the start of the study.
Cellular (cell) phones
Cordless phones, commonly used in homes, have base units that are plugged into telephone jacks and wired to a local telephone service. Different models of phones can give off different levels of RF waves. It is not clear at this time that RF waves from cell phones cause harmful health effects in people, but studies now being done should give a clearer picture of the possible health effects in the future.
This is one of the most obvious ways to limit your exposure to RF waves from cell phones.
The following is a brief summary of some of the major studies that have looked at this issue to date. Consider choosing a phone with a low SAR value. There are also limits as to how well this study might apply to people using cell phones today. The RF waves come from the cell phone's antenna, which is part of the body of a hand-held phone. They are not considered cell phones. At very high levels, RF waves can heat up body tissues. Scientific studies are underway to determine whether cell phone use may cause health effects.
This study found no link between cell phone use and brain tumors overall or several common brain tumor subtypes, but it did find a possible link between long-term cell phone use and acoustic neuromas. First, studies have not yet been able to follow people for very long periods of time. Use the speaker mode or video chat feature on the phone, or a hands-free device such as a corded or cordless earpiece.
Cell phone use is now widespread even among younger children. Some studies have found possible increased rates of certain types of tumors in lab animals exposed to RF radiation, but overall, the of these types of studies have not provided clear answers so far. Until more is known, there are several things that people who are concerned about RF waves can do to limit their exposure.
Overall, the study found no link between brain tumor risk and the frequency of calls, longer call time, or cell phone use for 10 or more years. Those evaluating the potential risks of using wireless devices agree that more and longer-term studies should explore whether there is a better basis for RF safety standards than is currently used. Phones can also connect to other devices tablets, laptops, car dashboard computers, etc. First, it is based only on whether or not people had a cell phone subscription at the time.
The phone is often held against the head when a person is on a call. This moves the antenna away from your head, which decreases the amount of RF waves that reach the head. But it may not be a good option in some situations, especially if you are driving. Many of these have been case-control studies, in which patients with brain tumors cases were compared to people who didn't have brain tumors controlsin terms of their past cell phone use. Fifth generation 5G cellular networks are now being rolled out in many parts of the United States and in other countries.
For example, many phones now have the option of using wireless Bluetooth earbuds. For more on this report, see Known and Probable Human Carcinogens. But the newer 5G als still use RF waves, so they are still forms of non-ionizing radiation, which is not thought to have the ability to directly damage DNA.
The studies that have been done so far to look at possible links between cell phone use and cancer have focused on older generation mainly 2G and 3G als. As with gliomas and meningiomas, there was no overall link between cell phone use and acoustic neuromas. The American Cancer Society ACS does not have any official position or statement on whether or not radiofrequency RF radiation from cell phones, real phone towers, or other sources is a cause of cancer.
Still, the of these studies do not rule out the possibility that RF waves from cell phones might somehow impact human health. The FCC has links to some of these sites here: www. So far, the Dating Toxicology Program NTP has not included RF radiation in its Report on Radiowhich lists exposures that are known to be or reasonably anticipated to be human carcinogens.
Several dozen studies have looked at possible links between cell phone use and tumors. The researchers noted that the shortcomings of the study prevented them from drawing any firm conclusions, and that more research was needed. The closer the antenna is to a user's head, the greater their expected exposure to RF waves. For example, while the cell phones used at the time of the study tended to emit higher levels of RF waves than modern Mobile phones do, real also probably used their phones quite a bit less than people use their phones today. The waves are strongest at the antenna and lose energy quickly as they travel away from the phone.
At this time, there has been very little research showing that the RF waves used in 5G networks are any more or less of a concern than the other RF wavelengths used in cellular communication. But this study also has some drawbacks. The body tissues closest to the phone absorb more energy from RF waves than tissues farther away. Because cell phones have been widely used for only about 20 years in most countries, it is not possible to rule out possible future health effects.
The listed SAR value is based only on the phone operating at its highest power, not on what users would typically be exposed to with normal phone use. For more on 5G networks, see Cell Phone Towers. For example, you may want to limit the amount of time you spend talking on the phone at least with your phone up to your ear. The most recent update of the study followed people through Cell phone use, even for more than 13 years, was not linked with an increased risk of brain tumors, salivary gland tumors, or cancer overall, nor was there a link with any brain tumor subtypes or with tumors in any location within the brain.
The NTP study also reported possible increased risks of certain types of tumors in the brain and in the adrenal glands. While both of these studies had strengths, they also had limitations that dating it hard to radio how they might apply to humans being exposed to RF waves from cell phones. This makes it hard to know if the of studies looking at cell phone use in years past still apply today.
But as with other devices that give off RF waves, possible health effects from these devices cannot be ruled out completely at this time. However, these studies have had some important limitations that make them unlikely to end the controversy about whether cell phone use affects cancer risk. After a known cancer-causing exposure, it often takes decades for tumors to develop. A large, long-term study has been comparing all of the people in Denmark who had a cell phone subscription between and aboutpeople to those without a subscription to look for a possible increase in brain tumors.
However, there was no apparent overall increase in brain tumors in Sweden during the years that Mobile to these reports. But the levels of energy given off by cell phones are much lower, and are not enough to raise temperatures in the body. Because cell phones usually are held near the head when a person is on a call, the main concern has been whether the phones might cause or contribute to tumors in this area, including:.
In summary, studies of people published so far have not established a clear link between cell phone use and the development of tumors. Finally, the measurement of cell phone use in most studies has been crude. People are using their cell phones much more than they were even 10 years ago, and the phones themselves are very different from what was used in the past. These studies have had mixed .
Bluetooth devices use RF waves in a similar wavelength range as those used for cell phones. Both studies found an increased risk of uncommon heart tumors called malignant schwannomas in male rats, but not in female rats nor in male or female mice, in the NTP study. Some studies have found a possible link between cell phone use and brain tumors, while others have not.
However, this is not a comprehensive review of all studies that have been done. Corded earpieces emit virtually no RF waves although the phone itself still emits small amounts of RF waves that can reach parts of the body if close enough, such as on the waist or in a pocket. Second, cell phone usage is constantly changing.
In these types of studies, it can be hard to interpret any possible link between cancer and an exposure.