Cell phones dangerous
Also noteworthy is that the studies evaluated radiation exposures in different ways.
Cell phones and brain cancer the real story
Whether or not the person is using the speaker mode on the phone or a hands-free device. Wireless technologies are proliferating daily, and different countries have different limits on radiation from wireless devices, which is why more and better designed research is urgently needed to determine safe levels of exposure. All studies done so far have limitations In summary, most studies of people published so far have not found a link between cell phone use and the development of tumors. After the year project was finished in February , scientists found that due to biases present in the study, no strong conclusions could be made. PLoS One4 7 :e In the case of cell phones, people with brain tumors may exaggerate their past cell phone use in an attempt to find an explanation for the inexplicable. However, several studies in rats and mice have looked at whether RF energy might promote the development of tumors caused by other known carcinogens cancer-causing agents. But some aspects of this study make it hard to know just how well these results might be applied to cell phone use in people. Controversies on Cell Phone Research Results Underlying the controversy about cell phone radiation is the belief by most physicists that cell phone radiation could not possibly cause cancer. That is why it is important that researchers who do not have financial ties to cell phone companies continue long-term studies with more appropriate measures of high, medium, and low cell phone usage.
After the year project was finished in Februaryscientists found that due to biases present in the study, no strong conclusions could be made. Mobile phones transmit and receive waves of frequencies mainly at MHz.
The results were inconsistent; whereas one study showed increased glucose metabolism in the region of the brain close to the antenna compared with tissues on the opposite side of the brain 29the other study 30 found reduced glucose metabolism on the side of the brain where the phone was used.
Are cell phones dangerous essay
In addition, the Working Group stated that the investigation of risk of cancer of the brain associated with cell phone use poses complex methodologic challenges in the conduct of the research and in the analysis and interpretation of findings. Some factors that can contribute to inconsistencies across such studies include assumptions used to estimate doses, failure to consider temperature effects, and lack of blinding of investigators to exposure status. Still, the amount of radiation emitted from mobile phones or WiFi devices is well below safety standards set for consumer products. This analysis found no increase in the incidence of brain or other central nervous system cancers between and , despite the dramatic increase in cell phone use in this country during that time 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. This study is relevant to humans because humans can develop similar types of tumors. Findings on the thermal effect of acute exposure to radiofrequency fields were consistent, resulting in an increase of cellular, tissue or body temperature by 1 degree C or more. Still, evidence advanced by the studies shows prolonged exposure to even very low levels of RF radiation, perhaps by mechanisms other than heating that remain unknown, makes rats uniquely prone to a rare tumor called a schwannoma, which affects a type of neuron or nerve cell called a Schwann cell. But for people who want to reduce their exposure to this type of energy, the California Department of Public Health has published new guidelines on how to do just that. A prospective study of cell phone users would have to compare the health of infrequent users controls to heavy users cases but it is becoming increasingly difficult to find people who never use cell phones. Samet adds a major challenge now would be to draw a biologically relevant connection between acoustic neuromas and other glial tumors in the brains of humans with Schwann tumors in rat hearts. The CERENAT study, another case—control study conducted in multiple areas in France from to using data collected in face-to-face interviews using standardized questionnaires Large epidemiological studies are necessary in order to investigate the use of mobile phones on the development of cancer. Researchers found that in comparison to a known cancer-causing agent, weak cell phone signals were more likely to promote tumor growth.
The results were compatible with no increased risks from cell phones, as reported by most epidemiologic studies. How common is brain cancer?
Meanwhile, cell phone companies continue to insist that the evidence shows that their cell phones are safe. These studies did not find evidence of tumor promotion.
SEER data with rates simulated from the small risks reported in the Interphone study 6 and the greatly increased risk of brain cancer among cell phone users reported in the Swedish pooled analysis The most consistent health risk associated with cell phone use is distracted driving and vehicle accidents 45 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.
Can I lower my exposure to RF waves from cell phones? More research is needed because cell phone technology and how people use cell phones have been changing rapidly. Danish Study How the study was done: This cohort study, conducted in Denmark, linked billing information from more thancell phone subscribers with brain tumor incidence data from the Danish Cancer Registry.
These studies have not shown clear evidence of a relationship between cell phone use and cancer.
How to avoid radiation from cell phones
For safety reasons, it is especially important to limit or avoid the use of cell phones while driving. The Working Group indicated that, although the human studies were susceptible to bias , the findings could not be dismissed as reflecting bias alone, and that a causal interpretation could not be excluded. These experimental findings raise new questions as to the potential for radiofrequency radiation to result in cellular changes and offer potential avenues for further laboratory studies. Arch Androl, 51 5 : Although epidemiological research seems to suggest otherwise, other factors make it difficult to measure the impact of cell phone use because cancer takes a very long time to develop, cell phone technology and frequency of usage has changed dramatically, and any link between cancer and cell phones could possibly be caused by unknown exposures or traits. Mobile phone radiation might alter protein expression in human skin. Cell phones work by sending signals to and receiving them from nearby cell towers base stations using RF waves. The article describes several hypotheses and results of biological effects such as thermal effect, genetic and carcinogenic effects and cancer related investigations. How do cell phones work? Like FM radio waves, microwaves, visible light, and heat, RF waves are a form of non-ionizing radiation. Several dozen studies have looked at possible links between cell phone use and tumors. At very high levels, RF waves can heat up body tissues. European investigators at the Ramazzini Institute in Italy were similarly ambitious; in their recent study they investigated RF effects in nearly 2, rats from the fetal stage until death.
based on 86 review