Youth Social conditions 81 Employment 55 History 46 Political activity 45 Social aspects 37 Attitudes 36 Social life and customs 34 Subculture 32 Children 29 Popular culture 21 Government policy 19 Services for 19 Adolescence 18 Research 18 Drug use 17 Unemployment 14 Adolescent psychology 13 Politics and government 13 Young adults 12 Drug abuse 11 Economic conditions 11 Education 9 Globalization 9 Psychology 9 Mass media and youth 8 Methodology 8 Political aspects 8 Social change 8 Student movements 8