The first impact is in medical terms. It is inevitable that a mobile phone would create a certain level of radiation while being used .Much scientific research has pointed out that such amount of radiation would potentially lead to serious diseases, such as cancer and tumor. Thus a long-time use of mobile phones might harm one’s health. Another problem often observed is how the inappropriate use of a mobile phone interferes with people’s activities. For example, during an important conference, calling or receiving mobile phones would distract audience attention and impair the quality of the conference.