Panic disorder is a type of anxiety disorder characterized by recurrent and unpredictable bursts of terror known as panic attacks. A panic attack is accompanied by physical symptoms that may feel similar to a heart attack or other life-threatening condition.

Intense anxiety often develops between episodes of panic. As panic attacks become more frequent, people begin avoiding situations that could trigger them. Panic attacks can lead to agoraphobia. This is a fear of being trapped in places or situations where escape could be difficult or impossible.

Panic disorder is likely to be an interaction of:

  • Genetics
  • Changes in brain function or metabolism
  • Psychosocial stressors that combine to influence the brain's fear networks