Probably no single situation or condition causes anxiety disorders. Rather, physical and environmental triggers may combine to create a particular anxiety illness. For example, psychoanalysts suggest that anxiety stems from unconscious conflicts that arise from discomfort during infancy or childhood and learning.
Theorists believe that anxiety is a learned behavior that can be unlearned.
Recently, many scientists and researchers have found that biochemical imbalances are anxiety-causing. Each of these theories is most likely true to some extent. It's also possible that a person may develop or inherit a biological susceptibility to anxiety disorders. Events in childhood may lead to certain fears that, over time, develop into a full-blown anxiety disorder. New technologies are enabling scientists to learn more about the biological, psychological, and social factors that may cause anxiety disorders.