Speech on cellphones are dangerous
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Cell phones are potentially dangerous when people tend to talk on their cell phones while driving and by doing so; it creates a greater risk of getting into an accident. Sometimes when you're talking on the phone, you tend to lose your attention on the road because of your focus on the person that's talking to you.
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I got my first wireless handheld in 1990. It was as big and clunky as a brick, but the mobility it offered made it indispensable. There are now more than 270 million cell phone subscribers in America, and on average we spend about 11 hours a month with the gadgets glued to our heads. But as we've become more reliant on cell phones, experts have grown concerned about the health implications of heavy exposure—specifically, the radiation that the devices emit.
Cell phones expose us to a form of electromagnetic radiation called radiofrequency (RF) energy. Scientists have suspected that this radiation might increase the risk of brain cell damage leading to tumors, and in 1995 they found this to be the case in rats. Most studies since then have failed to show a similar correlation in humans, and last December the Danish Cancer Society released results from a 29-year study that found no solid association between increasing cell phone use and brain tumors. Yet just months earlier, an analysis of the most rigorous studies found convincing evidence linking the use of handheld phones to brain tumors, especially in users of a decade or longer.
The medical community is paying attention, and so is the U.S. government. Last fall a Senate hearing on cell phones and health coincided with an international conference on the same subject. While more conclusive evidence is needed before we start clamoring for the return of pay phones, there are some simple ways you and your family can limit exposure to the radiation
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