Here are half a dozen papers on helping kids and adolescents.  The Fuligni et al paper found that adolescents experiencing frequent interpersonal stresses tended to have increased levels of C-reactive protein, " ... an inflammatory marker that is a key indicator of cardiovascular risk ... ".  Jackson et al showed that in preschool kids each extra hour of regular TV viewing is associated with an extra 1 kg of body fat.  This appeared to be due to increases in calorie intake rather than reduction in physical activity.  Decreased family accommodation is associated with improved outcome in paediatric OCD, Merlo et al found.  Naylor et al found that a six lesson teaching block on mental health benefitted young teenagers.  Proctor et al provide a free full text overview of teenage life satisfaction assessment measures, while Wilkinson and colleagues report on 28 week follow-up in a treatment trial for depressed adolescents.  The authors found "Depression at 28 weeks was predicted by the additive effects of severity, obsessive-compulsive disorder and suicidal ideation at entry together with presence of at least one disappointing life event over the follow-up period.

Here are five papers on difficulties experienced by adolescents.  A couple of the papers are follow-up studies.  Colman et al looked at the multiple negative personal & relationship outcomes in a UK national cohort of adolescents with conduct problems followed over 40 years.  Wentz et al studied the somewhat more encouraging 18 year outcomes of a group of adolescents suffering from anorexia. 

A couple of the papers are about depression.  Kennard and colleagues report again on the well-known Treatment for Adolescents with Depression Study (TADS) comparing antidepressants, cognitive-behavioural therapy and combined treatment.  By about six months there was little difference between the three forms of treatment.  At nine months the remission rate for intent-to-treat cases was 60% overall.  Primack et al investigated the association between electronic media use in adolescence and subsequent depression in young adulthood.  They reported "Controlling for all covariates including baseline Center for Epidemiologic Studies-Depression Scale score, those reporting more television use had significantly greater odds of developing depression."