Young in different concept it has its own meaning. In terms of age group most books defined young’s in age between 14 to 24.Some times it may be 30. Obviously People in this age group shared the same behavior. In addition to their bodily growth their mental activity also changed as before. Differently changes from kids and olds. Their way of thinking, talking, acting even dressing is completely changed. In every aspect of their life, young do things energetically. But those people in the age group of young, didn’t perform like young, Can we say those are young? In the other side, people above or below the age group take action like young, do we say those people are not young? So, who is young? In my opinion to be young, beside age, peoples must identify with their activity. Except disability of person Young must think, work and admit his/her mistake actively. Young must generate new ideas and practice it carefully. If you are young, think actively and contribute some valuable thing for your self, your family, your country and your world. Otherwise, you are not young.