I think disadvantages of mobile phones outweigh the advantages. Mobile phones are taking a very important role in our lives.Everyday,we use them at least three hours.And it is more than normal.They have a lot of disadvantages. Firstly,I will mention physical and mental disadvantages of them.Percentage of using glasses (or contact lens) increased because of this phones.And also they are destroying to our spinal cord,neck,waist...They have negative effects on our brain.Because of that we are forgetting necessary things. Another bad side of mobile phones is unsocializing our social life.We meet with our friends or relatives but we don't ask them their problems,we don't share our happinesses and sadnesses with them.We are only controlling our social media.What a pity! They also have bad effects on young people.They are trying everything they saw on the Internet and most of them are harmful.Also parents enc...