Anxiety disorder

An anxiety disorder is a class of mental disorders characterized by chronic and debilitating anxiety. This includes:

* generalized anxiety disorder
* panic disorder
* phobias
* post-traumatic stress disorder

Researchers reported in late 2008 that "[u]p to 20 percent of children and adolescents are affected by persistent and excessive worry that can manifest as generalized anxiety disorder, separation anxiety disorder and social phobia."[1] Anxiety can be described as a lack of faith.

## References[edit]

1. ↑ http://www.newswise.com/articles/view/547723/

## Sources[edit]

Abnormal Psychology, Rosenhan & Seligman, 1984