By blaketrent2010, 23-Jan-2012 18:28:00
Within the last year the World Health Organization’s International Agency for Research on Cancer announced it had classified electromagnetic fields (EMFs) from mobile phones and other sources as "possibly carcinogenic to humans". They continued on and advised the public to adopt safety measures for protection from radiation, like use of hands-free devices, texting, or using a device that reduced the exposure to cell phone radiation.
Radiation from cell phones is measured in SAR (specific absorption rate). It is produced as ionizing radiation, as opposed to non-ionizing radiation produced from sound and light waves. When it comes to protecting ourselves from ionizing radiation, there are three concepts to consider: time, distance, and shielding. The initial step in limiting the negative effects of cell phone radiation is understanding these components:
• Time: Radiation exposure levels vary depending on the amount of time spent near cell phone radiation.
• Distance: The proximity of the radiation to the user dictates levels of exposure.
• Shielding: The greater the “shield” around a radiation source, the greater the protection from radiation.
Although scientists still debate the specific correlations between cell phone radiation and negative health issues, there is no debate that protection from radiation, related to cell phone use, is a smart step to take for our overall health while the topic is further researched. It is also important to be aware of the various methods of protection from radiation, such as protective phone cases.
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By guest, 13-Jan-2012 15:20:00
Cell phones are actually radios -- an extremely sophisticated radio, but a radio nonetheless. Cell phones emit signals via radio waves, which are made up of radio-frequency (RF) energy, a form of electromagnetic radiation (EMR). These can subsequently be absorbed by tissues closest to where the phone is located. “The amount of radio-frequency energy a cell phone user is exposed to depends on the technology of the phone, the distance between the phone’s antenna and the user, the extent and type of use, and the user’s distance from cell phone towers,” according to the National Cancer Institute.
Cell phones are rapidly being updated and new models are introduced, thus it has been challenging for researchers to stay current with the direct effects of electromagnetic radiation (EMR) on humans. But that is not to say that there is no reason to be concerned with the potential negative effects of EMR. According to the National Cancer Institute, there are three main reasons for concern when considering the potential health effects cell phone radiation may produce:
• Cell phones emit radiofrequency energy (radio waves), a form of non-ionizing radiation. Tissues nearest to where the phone is held can absorb this energy.
• The number of cell phone users has increased rapidly. As of 2010, there were more than 303 million subscribers to cell phone service in the United States, according to the Cellular Telecommunications and Internet Association. This is a nearly threefold increase from the 110 million users in 2000. Globally, the number of cell phone subscriptions is estimated by the International Telecommunications Union to be 5 billion.
• Over time, the number of cell phone calls per day, the length of cell phone calls, and the amount of time people use cell phones have increased. Cell phone technology has also undergone substantial changes.
The Federal Communication Commission (FCC), the American Cancer Society (ACS), and the U.S. Food and Drug Administration (FDA) have all shared initial findings on their respective websites and are continually updating their research.
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