This is a deeply considerable question to my country, which reflects a major problem in the current social situation. Here, young people spend much time on the phone APPs, after school or work. Games, Short-video and Online shopping, etc. They are extremely lacking of physical activities. Less exercise won't increase their sports abilities, and even cause the decline of the physical fitness. As the same reason, there is absolutely no plenty of time to communicate frequently with families, friends, lovers and some one in any other relationships. We are gradually growing strange, distrust and even suspicion to everyone. How could we end up?Let's think about it and do something.