Samsung SGH-X156 User Manual

52Health and safety informationexposure. FCC relies on FDA and other health agenciesfor safety questions about wireless phones.FCC also regulates the base stations that the wirelessphone networks rely upon. While these base stationsoperate at higher power than do the wireless phonesthemselves, the RF exposures that people get fromthese base stations are typically thousands of timeslower than those they can get from wireless phones.Base stations are thus not the primary subject of thesafety questions discussed in this document.What are the results of the research donealready?The research done thus far has produced conflictingresults, and many studies have suffered from flaws intheir research methods. Animal experimentsinvestigating the effects of radio frequency energy(RF) exposures characteristic of wireless phones haveyielded conflicting results that often cannot berepeated in other laboratories. A few animal studies,however, have suggested that low levels of RF couldaccelerate the development of cancer in laboratoryanimals. However, many of the studies that showedincreased tumor development used animals that hadbeen genetically engineered or treated with cancer-causing chemicals so as to be pre-disposed to developcancer in absence of RF exposure. Other studiesexposed the animals to RF for up to 22 hours per day.These conditions are not similar to the conditionsunder which people use wireless phones, so we don'tknow with certainty what the results of such studiesmean for human health.Three large epidemiology studies have been publishedsince December 2000. Between them, the studiesinvestigated any possible association between the useof wireless phones and primary brain cancer, glioma,meningioma, or acoustic neuroma, tumors of the brainor salivary gland, leukemia, or other cancers. None ofthe studies demonstrated the existence of any harmfulhealth effects from wireless phones RF exposures.However, none of the studies can answer questionsabout long-term exposures, since the average periodof phone use in these studies was around three years.