Non-ionizing radiation is not a carcinogen, according to scientific agreement, and it has not been proved to cause any harm to individuals at or below the FCC's radio frequency exposure limitations. While in operation, cell phones generate modest quantities of non-ionizing radiation. The primary concern about the health effects of non-ionizing radiation arises from studies on rats and mice that were exposed to high levels of radiation for long periods of time.
Studies have shown an association between brain tumor development in rats and mice and exposure to cellular phone radiation. However healthy human brains do not produce tumors even after being exposed to high levels of radiation for many years. This suggests that other factors are involved in tumor formation beyond just radiation alone. Other studies have shown changes in brain tissue and DNA damage in cells grown in culture medium exposed to radiofrequency radiation. However, these studies used radiation levels 100 times higher than those currently allowed by law in Europe and America. Further research is needed to determine whether there are negative effects at lower doses over longer periods of time.
The World Health Organization's International Agency for Cancer Research has determined that there is "some evidence" that radiofrequency radiation may be carcinogenic to humans. However, this assessment was based on studies using radiation levels 100 times higher than those currently allowed by law in Europe and America. There is no proof that mobile phone use increases the risk of cancer.
The available evidence does not suggest that exposure to radio frequencies from wireless devices causes cancer or other health problems. To date, all studies have found no link between RF exposure and cancer or other health effects.
The World Health Organization's International Agency for Research on Cancer (IARC) reviewed the available science on radio frequency radiation and concluded in 2014 that the evidence was "inadequate" to determine whether there is a link between cell phones and brain tumors. The WHO also concluded that the evidence was inadequate to determine whether there is a link between WiFi and cancer or neurological disorders. In 2017, IARC again reviewed the evidence on radio frequency radiation and came to the same conclusion: the evidence is still inadequate to determine whether there is a link between radio frequency radiation and cancer or other health problems.
In Europe, regulators require manufacturers to prove that people can be exposed to radio frequency radiation without an increase in cancer risk. All of the major studies have been conducted in accordance with these regulations, so they are well controlled experiments.
No obvious increase in cancer risk has been observed in studies of persons who may have been exposed to RF radiation at work (such as those who operate near or with radar equipment, those who service communication antennas, and radio operators). A lot of research have been conducted to investigate the probable relation between cell phones and cancer. So far, it appears that using your phone for long periods may not be good for your health, but it's not clear whether this is due to radio frequency energy or another factor such as stress.
The question of whether or not there is a link between cellular phone use and brain tumors has been the subject of much debate. Studies have shown an association between chronic use of mobile phones and brain tumor development while others have failed to find such an correlation. It is likely that people who use mobile phones for many years may develop brain tumors, but it is also possible that other factors are involved as well. The type of brain tumor diagnosed most frequently in users of mobile phones is known as a "glioma". Gliomas are the most common primary brain tumor diagnosed in adults. They account for about 30% of all tumors of the brain and spinal cord. Other types of brain tumors associated with mobile phone use include astrocytomas and meningiomas. Brain tumors are difficult to diagnose because they can be hidden under the skin or within other parts of the head. They can also come back after they've been removed.
According to Foster, the only recognized risk of low-frequency non-ionizing radiation is "thermal heating," or excessive heating of bodily tissue, which "is not a worry for the low amounts of radiation released by a cell tower base station (location of several radio towers)." Close proximity to radio towers should not present an elevated cancer risk because the radiation they emit is non-ionizing.
In conclusion, living in close proximity to cell phone towers is not likely to cause harm from exposure to radio frequency energy. However, it is recommended that you keep away from antennas as much as possible to limit any potential exposure.
Based on a review of studies published up to 2011, the International Agency for Research on Cancer (IARC) classified RF radiation as "possibly carcinogenic to humans," citing limited evidence of an increased risk of brain tumors among cell phone users and insufficient evidence for other types of RF radiation. The IARC assessment was based on epidemiological studies showing an association between cell phone use and brain tumor development and experimental studies indicating that RF radiation may be able to reach the brain through the skull. However, it should be noted that this assessment does not imply that all people will develop brain tumors after using their phones for long periods of time.
In addition to the possible increased risk of developing brain tumors, there is also some evidence that using a cell phone for a long period of time may lead to other health problems. Studies have shown that using a cell phone for several years may increase the risk of developing dementia later in life. Other studies have indicated that RF radiation from cell phones may interfere with brain activity by changing the structure and function of neurons. Overall, more research needs to be done on this topic before any definitive conclusions can be made about how cell phone use may affect human health.
"There is substantial data indicating that mobile phone radiation causes DNA damage and cancer—not just in the brain, but also in the salivary glands, thyroid, breasts, fetal harm, sperm damage, miscarriages, bone cancer, and other areas." - Harvard Medical School
Mobile phone users are being exposed to high levels of radiation on a daily basis. The radiation comes from two sources: cellular towers and personal devices such as smartphones and tablets. Research shows that the radiation emitted by these devices can be harmful to human health. Studies have linked using a smartphone for more than an hour a day with lower cognitive performance; using it for more than five hours per day with worse memory and focus problems; and using it close up with lenses or headphones plugged in for much of the day with reduced night vision.
Health experts say that the only safe level of exposure is zero exposure. The scientific evidence indicates that there are negative effects on humans from exposure to low-level radiofrequency (RF) radiation. These include potential risks to children's brains (due to their larger bodies which put them at greater risk of injury from RF waves) as well as adults' brains (since studies show that higher exposure rates are associated with decreased dementia ability). Research has also shown links between cell phone use and brain tumors, cancers of the head and neck, and reproductive problems.