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Monday 1 August 2011

Does Wireless effect Health ?

According to some people prolonged exposure to wireless network devices can cause memory loss or other brain damage. Potential health hazards from the microwave signals of Wireless LAN and Wi-Fi have not been validated scientifically.
Wi-Fi transmits radio signals in the same general frequency range as microwave ovens. Yet compared to ovens and even cell phones, wireless network cards and access points transmit at much lower power. WLANs also send radio signals only intermittently, during data transmission, whereas cell phones transmit continuously while powered on. Overall, the average person's cumulative exposure to microwave radiation from Wi-Fi is much, much less than exposure from other radio frequency devices.
Schools have nonetheless remained concerned about the health risks of wireless networks on children. A few schools have banned or limited the use of Wi-Fi as a safety precaution
   World health Organization  (WHO) says "there is no risk from low level, long-term exposure to wi-fi networks" and the United Kingdom's Health Protection Agency  reports that exposure to Wi-Fi for a year results in "same amount of radiation from a 20-minute mobile phone call."

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