A panic attack is a sudden episode of intense fear or anxiety that triggers severe physical reactions, even when there is no real danger. Symptoms can include rapid heartbeat, sweating, trembling, shortness of breath, and feelings of impending doom. These attacks can occur unexpectedly or be triggered by specific situations. Panic attacks typically last for a few minutes but can feel much longer. They are often associated with panic disorder, a type of anxiety disorder where individuals experience recurrent panic attacks. Treatment options include therapy, medication, and lifestyle changes to help manage symptoms and reduce the frequency of attacks.