En general estar felices mejora la vida de las personas y es lo que se busca en la vida. En la presente investigación se preguntara a través de una entrevista semi-estructurada a los jóvenes cual es su concepto. Generally be happy improves people's lives and what is objective in life. In the present investigation is asked through a semi-structured interview to youth people which are their concept. According to the characteristics of the responses to how long the happiness last, who is achived and what were the moments of most happiness of the participants were two groups, those who perceived happiness as a state of mind and the people who perceived as a feeling.