RF exposure does not affect cognitive function in new study
a study that was part of the Mobile Telecommunications and Health
Research Programme in the UK, Russo and colleagues tested the effect
of RF exposure generated by cell phones on cognitive
function. Both GSM modulated and CW signals were used. Their
study was designed to overcome some of the defects of other studies.
They used a large sample size (168 participants), and the subjects
were tested in a double blind fashion. They found no significant
effects of RF exposure on performance of four tasks of cognitive
function, including those that had been found in previous studies
to be affected by RF exposure.
more, see “Research
– Clinical – cognitive function”.
Russo R, Fox E, Cinel C, Boldini A, et al. Does acute exposure to
mobile phones affect human attention? Bioelectromagnetics 2006;27:215-220.
of cell phones and tumour risk
a recent article, Ahlbom and colleagues review results from recent
studies that examined the risk of brain tumours in association with
the use of cell phones. They discuss the first two INTERPHONE studies
to report (although there have been others more recently). They
also review others that were published previously. As with other
reviews, the main point that emerges is the lack of consistency
in the results. Interpretation is also difficult because of the
small number of cases that have used cell phones for 10 years or
more on this subject, see “Research
Ahlbom A, Feychting M, Lonn S. Mobile phones and tumor risk: Interpretation
of recent results. Radio Science Bulletin 2005;314:30-33.
article in Radio Science Bulletin, this time in the December issue,
discusses electromagnetic hypersensitivity (EHS). Some individuals
report health symptoms that they relate to exposure to EMF. On occasion
these effects can have profound effects on the individuals' way
of life. They complain of a variety of non-specific symptoms, which
vary from individual to individual, and include general complaints
like tiredness and dizziness, as well as skin, digestive, and other
symptoms. There are more reports of EHS in Scandinavian countries
than elsewhere. Provocation studies have almost all shown that individuals
with EHS cannot detect EMF exposure any more accurately than non-EHS
individuals. A WHO workshop on EHS in Prague in 1994 concluded that:
"The symptoms are certainly real and can vary widely in their
severity. Whatever its cause, EHS can be a disabling problem for
the affected individual. EHS has no clear diagnostic criteria and
there is no scientific basis to link EHS symptoms to EMF exposure".
a Fact Sheet on the subject, see WHO's web site at www.who.int/mediacentre/factsheets/fs296/en/
Reference: Lin JC. Hypersensitivity to mobile phones and subjective
symptoms. Radio Science Bulletin 2005;315:44-46.