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what is cell phone radiation
is cell phone radiation
dangerous ?
cell phone and brain cancer
report
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Cell
Phone Radiation Report
Scientists are currently split on
the level of danger that the magnetic field emitted by cellular
telephones poses to humans.
However, society "must not repeat the situation we had with the
relationship between smoking and lung cancer where we ... waited
until every 'i' was dotted and 't' was crossed before warnings were
issued," warned David Carpenter, director of the Institute of Health
and Environment at the University of Albany, in testimony on
September 25 before a subcommittee of the U.S. House of
Representatives Committee on Oversight and Reform.
Ronald Herberman, director of the University of Pittsburgh Cancer
Institute, said that most studies "claiming that there is no link
between cell phones and brain tumors are outdated, had
methodological concerns, and did not include sufficient numbers of
long-term cell phone users." Many studies denying such a link
defined regular cellphone use to be as little as "once a week," he
said.
"Recalling the 70 years that it took to remove lead from paint and
gasoline and the 50 years that it took to convincingly establish the
link between smoking and lung cancer, I argue that we must learn
from our past to do a better job of interpreting evidence of
potential risk," said Herberman.
Carpenter and Herberman both told the committee that the brain
cancer risk from cellphone use is far greater for children than for
adults because their brains are growing rapidly and their skulls are
thinner. Herberman held up a model for lawmakers showing how
radiation from a cell phone penetrates far deeper into the brain of
a five-year-old than that of an adult.
The committee was shown several European studies, particularly
surveys from Scandinavia, where the cellphone was first developed,
which show that the radiation emitted by cell phone have definite
biological consequences. For example, a 2008 study by Swedish cancer
specialist Lennart Hardell found that frequent cellphone users are
twice as likely to develop a tumor on the auditory nerves of the ear
most used with the handset, compared to the other ear.
A separate study in Israel determined that heavy cellphone users had
a 50-percent increased likelihood in developing a salivary gland
tumor.
In addition, a paper published this month by the Royal Society in
London found that adolescents who start using cell phone before the
age of 20 were five times more likely to develop brain cancer at the
age of 29 than those who didn't use a cell phone. "It's only on the
side of the head where you use the cellphone," Carpenter said.
The testimony of Carpenter and Herberman came four months after
three prominent neurosurgeons appeared on Larry King Live and told
the CNN interviewer that they did not hold cell phone next to their
ears. Dr. Keith Black, a surgeon at Cedars-Sinai Medical Center in
Los Angeles, said, "I think the safe practice is to use an earpiece
so you keep the microwave antenna away from your brain."
Dr. Vini Khurana, an associate professor of neurosurgery at the
Australian National University, said, "I use it on the speaker-phone
mode. I do not hold it to my ear." CNN's chief medical
correspondent, Dr. Sanjay Gupta, a neurosurgeon at Emory University
Hospital in Atlanta, added that he also uses an earpiece.
What do those brain surgeons know about cellphone safety that the
rest of us don't? Louis Slesin, editor of Microwave News, gives us a
clue when he says, "What we're seeing is suggestions in
epidemiological studies that have looked at people using phones for
ten or more years. There are some very disconcerting findings that
suggest a problem."
Those on the other side of the issue point out that, while some of
the research suggests a link between cellphone use and certain types
of tumors, all of those cancers are rare, so, even if cellphone use
does increase risk, the risk is still very low. However, the fear is
that, while the individual risk of using a cell phone is relatively
low, with three billion users worldwide, even a low risk would
translate into a major public health concern.
"We cannot say with any certainty that cell phones are either safe
or not safe," Dr. Black said on Larry King Live. "My concern is
that, with the widespread use of cell phones, the worst scenario
would be that we get the definitive study ten years from now." |
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