Cell phones = brain cancer?
?
People who use cell phones for long periods of time may have three times the risk of brain cancer as others, a study warns.
Researchers found that people who use cell phones or cordless phones for more than 25 years have an increased risk of brain cancer. This was concluded when compared to people who had used a cell phone or cordless phone for less than a year.
Glioma is a highly lethal form of brain cancer, and the researchers, in an article published in the journal Pathophysiology, noted that the probability of developing a glioma increases with the amount of time spent using a cell phone or cordless phone.
Dr. Lennart Hardell, first author of the article, said, ? We came to the clear conclusion that after 25 years of cell phone and cordless phone use, the risk of brain cancer may triple.?
Few researchers have included cordless phones in their studies of the relationship between cell phone use and cancer, and Hardell is one of the few to do so.
But his findings are contrary to previous research in this area, which has not found strong evidence that cell phone use actually increases the risk of brain cancer.
Still, even if the risk of developing a glioma is doubled or tripled, the odds are still very low.
The question of cell phone radiation and brain cancer remains unanswered by foreign studies
?
According to a study in the European Journal of Cancer, between 1995 and 2002, only about 5 out of every 100,000 Europeans were diagnosed with some form of malignant brain tumor, which is to say a rate of 0.005%.
If that rate were to triple, that would be about 16 per 100,000 people with malignant brain tumors, or 0.016%.
Hardell is an oncologist at Orebro University Hospital in Sweden. In this study, he and his colleague Michael Carlberg compared 1,380 patients with malignant brain tumors to people without such tumors.
Then they compared their use of telephones. The study found that people who said they had used a cordless or cell phone for between 20 and 25 years were twice as likely to be diagnosed with a glioma as those who said they had used a cell phone or cordless phone for less than a year.
Hardell is one of the few researchers to include cordless phones in his study of the relationship between cell phones and cancer. He concluded that radiation from cordless phone bases has health effects, especially if the user sleeps right next to the phone.
Hardell said that children are probably the most vulnerable to radiation from cordless phones. They absorb more radiofrequency electromagnetic fields because their heads are smaller, their skulls are thinner, and their brains are more conductive.
He also added that ? Girls often like to keep their smartphones under their pillows, but this is a very bad habit.?
Dr. Gabriel Zada, a neurosurgeon at the University of Southern California, also believes that the developing brain is more susceptible to EMFs and advises not to keep your phone nearby while sleeping.
However, he said, ? It is difficult for us to make a formal recommendation because there is not enough data. It's not like the relationship between smoking and lung cancer, which has not been proven.?
People who use cell phones and cordless phones for more than 25 years are three times more likely to develop gliomas. But this study did not show a relationship between cell phone and cordless phone use and malignant brain tumors other than gliomas.
People who used cell phones and cordless phones the most (more than 1,486 hours) were twice as likely to develop gliomas as others. This was compared to people who used cell phones and cordless phones less (between 1 and 122 hours).
Such studies have many limitations, as their conclusions rely on patients being able to remember their behavior from decades ago.
Dr. Gabriel Zada, commenting on the study, suggested that we take preventative measures, such as using a speakerphone or wireless headset when talking on a cell phone.
But this new study does not answer the question of why people who use cell phones or cordless phones are more likely to develop brain tumors.
Dr. Zada said, ? A lot of people ask me why they develop brain tumors, but a lot of different theories exist. It's a very responsible thing to never say that it's the cell phone that's causing the tumor.?
His previous research found that between 1992 and 2006, there was a significant increase in the number of people with malignant tumors in California. But this study also found that the proportion of people with gliomas decreased during this period.
Between 2000 and 2010, the number of cell phones in the United States tripled. But across the United States, there was no increase in the number of people with brain tumors.
According to Dr. Zada, the new study is now a reminder that more research is necessary.
He said, ? This is further evidence that there may be some link between brain tumors and cell phones.?
In 2011, a World Health Organization panel of 31 scientists from 14 countries classified cell phones as ? possibly carcinogenic? substances.
The American Cancer Society says on its website that cell phones radiate electromagnetic energy, which can be absorbed by body tissues in close proximity to the phone.? Studies so far have not reached consistent conclusions about the link between cell phone use and cancer in the brain, nerves, or other tissues of the head and neck.?
Ask yourself, would you not use your cell phone because of the radiation?
?
(Original article reprinted from ngrguardiannews.com, compiled by Tadpole. Please cite the source for reprinting.)
?
?
Any content signed with "Tadpole Pentatonic" is copyrighted by Tadpole Pentatonic and may not be reproduced without authorization by any media, website or individual, or else they will be held liable. 申请转载授权或合作请发送邮件至editor@kedo.gov.cn. The signed articles published on this website only represent the author's point of view and have nothing to do with this website. If there is any infringement of copyright, the responsibility of the article.
Author: Compiled by Tadpole