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similar to the
conditions under which people use wireless phones, so it is largely unknown what
the results of such studies mean for human health and safety. Three large
epidemiology studies have been published since December 2000. These studies
investigated possible associations between the use of wireless phones and primary
brain cancer (glioma, meningioma, acoustic neuroma, other brain tumors, and
salivary gland tumors), leukemia, or other types of cancer. None of the studies
demonstrated the existence of any harmful health effects from wireless phone RF
exposures. However, none of the studies can provide absolute findings about long-
term exposures since the average period of phone use in these studies was
approximately three years.
4. What kinds of phones are the subjects of this update?
Here the term “wireless phone” refers to handheld wireless phones with built -in
antennas, often called “cell”, “mobile”, or “PCS” phones. These types of wireless
phones can expose the user to measurable Radio Frequency (RF) energy because of
the short dist ance between the phone and the user’s head. These RF exposures are
limited by FCC safety guidelines that were developed with the advice of the FDA
and