LG 236C User Manual page 76

For Your Safety
demonstrated the existence of
any harmful health effects from
wireless phone RF exposures.
However, none of the studies can
answer questions about long-term
exposures, since the average
period of phone use in these
studies was around three years.
5. What research is needed to
decide whether RF exposure
from wireless phones poses a
health risk?
A combination of laboratory studies
and epidemiological studies of
people actually using wireless
phones would provide some of
the data that are needed. Lifetime
animal exposure studies could
be completed in a few years.
However, very large numbers
of animals would be needed
to provide reliable proof of a
cancer promoting effect if one
exists. Epidemiological studies
can provide data that is directly
applicable to human populations,
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but ten or more years follow-up
may be needed to provide answers
about some health effects, such as
cancer. This is because the interval
between the time of exposure to
a cancer-causing agent and the
time tumors develop — if they do
— may be many, many years. The
interpretation of epidemiological
studies is hampered by difficulties
in measuring actual RF exposure
during day-to-day use of wireless
phones. Many factors affect this
measurement, such as the angle at
which the phone is held, or which
model of phone is used.
6. What is the FDA doing to find
out more about the possible
health effects of wireless phone
RF?
The FDA is working with the
U.S. National Toxicology Program
and with groups of investigators
around the world to ensure that
high priority animal studies are
conducted to address important