young people are richer,safer and healthier than before, but they are less happy.causes and solution peoples living conditions have seen great chances because of the advent of advanced technology and the development of society. However, it is an unnormal phenomenon that young peoples happiness is reducing, although young people are experiencing higher living standard than ever before. What will be discussed are the reasons caused by this phenomenon and how to deal with it. One of main reasons is that there is much evidence that peoples happiness does not mainly depend on how much what they have and how rich they are. Instead, it comes from their inner heart and self-satisfaction. Therefore, it is easy to conclude, that young people have much more money or have better physical conditions than in the past does not imply that they will gain or possess more happiness than ever before. Another main reason is that there is no doubt that our living standard has been greatly improved, leading to most young people can have higher living quality and improved medical care. But it should be notice that those from countryside or remote areas might cannot have equal access to those benefits given by high living quality, they will become jealous to their peers who possess many stuffs that they have not. Besides, those who have owned substances will be envy of people who have much more or better stuffs than theirs. Both those might feel unhappy when they realize that this is true reality. As shown above, one can conclude that peoples happiness is connected to their inner heart not external substances. Besides, peoples jealous have an bad effects on their happiness. That is why young people feel less happy. To solve this problem, the intervention of governments is highly required. More funds given by governments should be invested in the research on the fields of happiness. And then the results of finding should be translated into rules or articles so that it is convenient for young people to understand what is happiness. parental instructions are also recommended. In daily life, parents should help young people to establish a wholesome outlook of life and values.