Youth Social conditions 150 History 105 Political activity 100 Employment 78 Children 54 Prevention 49 more ... Social aspects 45 Attitudes 43 Government policy 39 Social life and customs 39 Services for 37 Drug use 34 Politics and government 33 Teenagers 31 Political aspects 25 Sexual behavior 25 Juventud 22 Psychology 22 Subculture 21 Religious life 20 Young adults 20 Education 18 Economic conditions 17 Health and hygiene 17 Students 17 Counseling of 15 Juvenile delinquency 15 Popular culture 15 Research 14 less ...