Smart phone 2 weeks ago, I changed my smart phone to iphone 5s. Because of this, there is the smart phone in my hands every time, every where. Of course, it is same that before changing the phone. Any way, I think it is very bad things to human life. Even though I look into my phone until get a sleep. So I don't speak my family and I can't have my own time to think of something. Sometimes I think, I want to come back to Analog period.