Mobile phones have become so common that it is hard to believe that there was a time when we had no mobile phones. It has become such an essential thing in every ones life. Today, everyone from students to professionals have a mobile phone. Mobile phones are often a nuisance. They are quite disturbing sometimes. It rings in the middle of some interesting conversations or even in the middle of important meetings. It is also very dangerous to use mobile phones while driving. It not only interrupts the traffic, but also can endanger the life of the mobile user because he will not be able to concentrate on driving while talking on the mobile phone. In such cases, it is always wise to avoid mobile phones while driving. Apart from these disadvantages of mobile phones, there are health factors too to be considered. There are unconfirmed reports that mobile phones could cause cancer because of the radiation they produce. Even though the mobile phones have their disadvantages, they have become necessary in our lives.