Definition Panic Attacks are comprised of discrete period of overwhelming anxiety and fear. Panic attacks come abruptly and for no apparent reason. After the onset of the panic attack a person will experience both physical and mental discomfort These symptoms both physical and mental peak in about ten minutes.
Panic attacks subside as abruptly as they begin, lasting anywhere from seconds to several hours.
Most Panic Attacks do however pass in a few minutes and only in rare cases last several hours. The frequently of these attacks may vary from several times a day to only once or twice a year. After the onset of the first attack many people develop anticipatory anxiety . Chills or hot flushes. Derealization or depersonalization.