Have you ever thought what knife is – an instrument used in the kitchen or a weapon ? Similar is the case with technology that is mobile phones. It all depends on the way it is used. Nobody can deny the fact that science has made a tremendous progress in the twentieth century. Recent advancement in technology have made our lives easier. Mobile phone is a portable electronic device. These have completely changed the concept of telephoning and are now inexpensive, easy to use, comfortable and equipped with almost every latest feature we desire such as camera, calculator, internet, banking services, games and many more. Mobile phones can be now seen in every hand. No doubt, that the cell phones have not only assisted us in emergencies but also improved the livelihood. Mobile phones are Boon as well as curse. If technology is good for our development then there are disadvantages too. we have seen and experienced most teenagers isolating themselves from their family, going to their rooms and constantly texting, posting messages, upgrading face book, showing off photos and many more. They prefer to be left alone with their mobile rather than communicating with parents and family. It has created a deeper gap in parent-child relationship. Research tells us that the healthy parent-child relationship plays a major role in producing good citizens. In olden days, People used to visit tp their relatives but what now a days We just make a phone call to them instead of visiting. We call our grandparents through phones to check if they are doing okay. We wish them Merry Christmas and Happy New Year by sending a text message. We are living in a fast moving world where social life is centered around the mobile phones. Leave aside the social life. Think about the health problems because of excessive use of mobile phones. It is a scientific fact that cell phones emit radio frequency energy, a form of radiation, which can be absorbed by tissues in your body. The nervous system of children is still developing and is more vulnerable to factors that may cause cancer. On other hand Cell phones is a real blessing which allow us to save a lot of time and help us spend those time for other productive purpose or just relax with family. How many times us can visit a relative who live in another town? May be 2 or 3 times a year. That is what our previous generation used to do. Between these visits, they would never know what is going on there. Imagine how lucky are we! All of our friends and relatives are just a phone call away. There are always two faces of coin, If this invention of science is harmful to us, then a lot of good.