The prognosis for people who suffer a panic attack is overall, good. Some people have a single attack and are never bothered again. Yet, two-thirds of people experiencing a panic attack go on to be diagnosed with panic disorder. Also, half of those who go through a panic attack might develop clinical depression within the following year, if not treated promptly. Occasionally, a person will, after a long evaluation, be diagnosed with a medical condition that causes panic symptoms.
When people are confronted with unpleasant and potentially harmful stimuli such as foul odors or tastes, PET-scans show increased bloodflow in the amygdala. In these studies, the participants also reported moderate anxiety. This might indicate that anxiety is a protective mechanism designed to prevent the organism from engaging in potentially harmful behaviors.
Social anxiety disorder (previously called social phobia): People with social anxiety disorder have a general intense fear of, or anxiety toward, social or performance situations. They worry that actions or behaviors associated with their anxiety will be negatively evaluated by others, leading them to feel embarrassed. This worry often causes people with social anxiety to avoid social situations. Social anxiety disorder can manifest in a range of situations, such as within the workplace or the school environment.