Are cell Phones a Health Hazard?

Topics: Mobile phone, Mobile phone radiation and health, Cellular network Pages: 6 (2431 words) Published: January 17, 2014
Are cell Phones a Health Hazard?
With the increasing of mobile phones' functions, people rely more and more on them. The lower price also enables the mobile phone to become people's daily necessity. Now even many students have their own mobile phone. People began to worry about the cell phone which will do harm to our health. But why people become worried about that? There are some speculates that cell phone might potentially threaten human being's health. Mobile phones can emit radiofrequency energy (radio waves), which is constituted by non-ionizing radiation. Things closest to the cell phones will absorb this energy. According to the Cellular Telecommunications and Internet Association, as of 2010, there were more than 303 million subscribers to mobile phone service in the United States, which is nearly three times than the 110 million users in 2000. Globally, the number of mobile phone subscriptions is estimated to be 5 billion by the International Telecommunications Union. The number of mobile subscriptions has already increased quickly. (Cell Phones and Cancer Risk, 2012) The chart below (Chart 1) shows the number of mobile Internet users, including the prediction of the number in 2013. Over time, the amount of time of each phone call, as well as the number of people using the mobile phone has increased. Mobile phone technology has also had a very big change. Chart 1

Chart1: US moblie Internet users & penertration, 2008-2013 (millions and % mobile phone subscriers)

To my way of thinking, cell phones will really have a health hazard. RF is a potential threat to human body. Radiofrequency energy (RF) is a form of electromagnetic radiation. Electromagnetic radiation can be defined into two types: ionizing (e.g., x-rays, radon, and cosmic rays) and non-ionizing (e.g., radiofrequency and extremely low-frequency or power frequency). (Cell Phones and Cancer Risk, 2012) As we know, all of the creatures and plants, including humans, are exposed to ionizing radiation and non-ionizing radiation during the whole period of evolution. So recently the society began to worry about the potential harm of RF from cell phones which may cause brain cancer. A series of studies began to look at the relationship between cell phone usage and brain tumors. If cell phone will bring a negative effect was a controversial topic, and the opinions on this topic are extremely different. Some people hold that cell phones are nothing to do with the health problems, since the non-ionizing radiation from cell phones is typically safe to the human body. A low level of radiofrequency energy is a kind of non-ionizing radiation, and it is different from high levels of radiofrequency energy that produces negative health effects by heating tissue. (Radiation-Emitting Products, 2012) Therefore, it can say people exposed to low level RF which does not heat tissues in human body are not necessary to worry about with cell phones. Although low level RF is safe doesn’t mean that the potential damages do not exist. Firstly, our brain is able to absorb the electromagnetic radiation at radio frequencies that emitted by mobile phones, so if we use mobile phones for a long time, which will increase the hazard of brain cancer to a great extent. So this is a long-term effect. Secondly, cell phones are becoming more advanced, and the inner structure of cell phones has had a great change. Cell phones have come to our daily life with more functions, which may have unknown effects. A recent study showed that when people used a cell phone for 50 minutes, brain tissues on the same side of the head metabolized more glucose than that on the opposite side of the brain. (Cell Phones and Cancer Risk, 2012) It means that using cell phones can change some tissues of human body, although the outcomes have not been deemed good or not. Another negative effect is that talking through cell phones when driving will increase the risk of traffic accidents. There were nearly 80 million...
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