sabato 20 novembre 2010

cellular phones and the risk of cancer: new insights.


Young mother speaking at her mobile phone, Hell Ville, Madagascar
There is an increasing concern in the  media  in the USA about the fact that long-term exposure to microwaves from cellular phones may lead to an increased risk of brain tumors, as well breast cancer and sperm reduction. Most of us have no idea that cell phones are small microwave radios that should not be kept directly on the body. Many researchers have demonstrated that the current standard of exposure to microwave during mobile phone use (cellular or cordless phones) is  not safe for long-term exposure. Although some studies have found no association, others suggest that the more hours of cellular phone use over time, the higher the risk of developing brain tumors. Risk also increases along with the level of power from the wireless device, years since first use, total exposure, and younger age when starting wireless phone use.
Cell phone’s microwave radiation seeps directly into soft fatty tissue of the breast and there already are some cases reported of breast cancer developed in close proximity to the site in the bra where cell phones are tucked and used for hours a day with a
hands-free headset. For many young women today, tucking cell phones in the bra has become a cool, hip way to have simple access to these essential devices. As a way to get their newborn infant son to sleep through the night, some moms use i-Phone for the often-difficult task of pacifying them. They download several applications, including “BabySoothe” and “Lullabies”, and set them running throughout the night in close proximity to their baby’s head. Children’s brain (which double in size during the first year of life) is especially vulnerable to the emission of these two-way microwave radios, with their pulsed digital signals. Brains are not the only part of our anatomy that we need to be concerned about. According to several different studies, sperm count is 50% lower in men who use cell phones four hours a day—which is the case for a growing number of teenagers and young men.  Cells in human sperm exposed to cell phone radiation have been shown to die three times faster and become much sicker than those left alone. One may say that Africa is still free of this risk because of its poor economy and different lifestyle of inhabitant people. This is not completely true. I am not wrong if I believe that in most African countries, even the poorest, there is a widespread coverage by wireless communications facilities. These people may have no access to safe drinking water, or efficient health system, but, meanwhile, have no problem to use a cellular phone. The young mother shown in the photograph above, speaking at her mobile phone depicts this phenomenon: she lives in a country where prevention or early diagnosis of breast cancer or cervical cancer is not available but cellular phones are widespread among local people. Is the cellular phone lacking technologies to reduce exposure to microwave emissions an additional danger the developed countries are exporting to the low-income developing world ?.

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