Separation anxiety disorder is a condition in which a child becomes fearful and nervous when away from home or separated from a loved one -- usually a parent or other caregiver -- to whom the child is attached.

Anxiety is part of the package of life. Its a natural byproduct of having a brain that is capable of such high-wire acts as considering the future, but too much can be disabling.

The fear and terror that a person experiences during a panic attack are not in proportion to the true situation and may be unrelated to what is happening around them. Most people with panic attacks experience several the symptoms outlined in this article.

Common symptoms of anxiety.

Learn about panic disorder -- a serious condition that strikes without reason or warning causing panic attacks.

Information on generalized anxiety disorder -- GAD; the causes, symptoms and treatment of generalized anxiety disorder.

Learn about obsessive compulsive disorder (OCD), a type of anxiety disorder characterized by compulsions to perform certain rituals to prevent or get relief from obsessive thoughts.

Information on the phobia called social anxiety disorder, in which a person develops an unnatural fear of social situations, causing them great anxiety.

Learn about panic disorder -- a serious condition that strikes without reason or warning causing panic attacks.

Posttraumatic stress disorder is a serious mental condition which is a lasting consequence of traumatic ordeals that cause intense fear, helplessness or horror.

Learn about dependent personality disorder which is one of a group of conditions called anxious personality disorder. Read about the symptoms, causes, and treatment for dependent personality disorder.

Learn about self injurys causes, warning signs, diagnosis, and treatment.

Learn about trichotillomania -- a hair pulling disorder that involves the irresistible urge to pull out hair anywhere on the body.

Learn the symptoms that signal depression in children and how childhood depression differs from normal sadness.

Anxiety disorders have the potential to negatively affect job-performance and could ruin your career.

Learn how the symptoms of Depression, anxiety disorder, and bipolar disorder compare.

Learn about phobias -- persistent fear that is excessive and unrealistic.

Learn about social anxiety disorder, also called social phobia, and how it differs from shyness.