Teenagers -- Conduct of life 2 Research -- 2 Youth -- 2 Adolescence -- 1 Adolescent psychology -- 1 Beauty, Personal 1 more ... Care and hygiene 1 Cosmetics 1 Divorced mothers -- 1 Fiction 1 Friendship 1 Health and hygiene 1 Juvenile delinquency -- 1 Mothers and sons -- 1 Skin -- 1 Smoking -- 1 Social aspects -- 1 Teenage boys -- 1 Teenage girls -- 1 Tobacco use -- 1 less ...