Teens with sunnier outlooks also tend to be healthier, a new study finds.

University of South Florida researchers found that teens' positive emotions and moods, as well as their satisfaction with life, may be more important than either anxiety or depression levels for predicting physical health.

Overall, there appeared to be a strong link between good physical health and life satisfaction and recently feeling excited, strong and proud. Poorer health was associated with feeling lonelier, feeling more guilty, anxious and depressed, and being more likely to display negative behaviors.

The findings, recently published online in the journal Applied Research in Quality of Life, show the importance of emotional well-being on adolescents' physical health, the study authors said.

Source: U.S. News & World Report
http://health.usnews.com/health-news/family-health/brain-and-behavior/articles/2010/07/23/in-adolescence-happier-often-means-healthier.html