Teenagers Adolescence 22 Social conditions 15 Adolescent psychology 13 Social life and customs 10 Children 9 History 9 Sexual behavior 8 Drug use 6 Family relationships 6 Mental health 6 Attitudes 5 Books and reading 5 Drug abuse 5 Parent and teenager 5 Prevention 5 Social aspects 5 Young adults 5 Alcohol use 4 Counseling of 4 Employment 4 Internet and teenagers 4 Mass media and teenagers 4 Public opinion 4 Suicidal behavior 4 Youth 4 Case studies 3 Child mental health 3 Digital media 3 History and criticism 3