王子面2011's notebook entry: Apr 20, 2011 I am very glad to your come I am a graduate student and my major is medical What is the weather in your place? What`s the time in you place I am a little nervous because I afraid I can`t talk with you fluently.

王子面2011's notebook entry: Apr 17, 2011 THE HAZARD OF CELL PHONE Over the past decade, the world has seen rapid growth in cell phone. Everyone from older adults to kids in high school seems to carry one glued thing to their ears. The widespread use of cell phones has led to increased concerns about the possible health risks. Many of the researches are pointing out the risk of cancer due to the prolonged use of cell phones. When people use the phone, the phone will transmit radio waves to the base station transmitter. While, any kind of radio waves is more or less absorbed by people, changing the human tissue, and affecting the human health. These waves are known as the cell phone radiation The amount of microwaves a person is exposed to with the use of a cell phone depends on a number of factors including the distance from the base station, duration and frequency of the cell phone use and the age of your mobile phone (The older your mobile phone is, the higher the exposure is). There are kinds of research results in the world. For example, the most serious warning is that: the Australian expert thinks the risk of brain cancer will be increased by one times if people use cell phones more than ten years. Here is another phenomenon: many young girls like to hang the cell phones on the breast. This will not only have a certain influence on the heart, but also affect the endocrine function of women, especially be harm to pregnant women because the phone radiation is unfavorable for the fetus [1]. Many other experts indicate that prolonged use of mobile phones may cause memory loss, mental confusion, alter the brain's electrical activity during sleep and open the blood-brain barrier to viruses and toxins. Recent studies confirm that cell phone microwave can cause hot-spots to develop inside the brain, causing damage which could lead to Alzheimer's disease or cancer (brain tumor) [2]. The cell phone is a dangerous microwave transmitter and it has brought a cancer warning! Sweden has made a large study with 1251 cases of brain tumors compared to controls. The risk increased the more years and the more hours per year the phone had been used. The increased risk was 390% for mobile phones and 190% for cordless phones. The greatest risk was for Astrocytoma, a malignant tumor [3]. If you don't trust “THE EXPERTS SAY”, I will share a video that I ever have seen. In that video, four foreign people put four cell phones on the table around corns .Then, they use the other four phones to call the four. When the phones ring, the corns is unbelievable jumped and exploded. The corns become the popcorns. From this we can know the power of microwaves. Cell phone as a principal form of communication has become an inevitable part in our daily life. Even though knowing the existing risks of the cell phone, people still can't abandon it. After realizing the “facts”, what we can do is to protect ourselves better, using it by taking safety measures, such as using them moderately, to reduce the health hazards associated with the prolonged use of mobile phones.