The causes of panic are various, not simply the heart: 1, fast heartbeat: the most common cause of panic is fast heartbeat, heartbeat too fast will feel panic; 2, emotional tension: emotional tension will also feel panic; 3, organ disease: such as lung causes, kidney insufficiency or other organ disease, in the acute attack of the heart appears collateral reaction, will also cause panic; 4 After strenuous exercise, some people will feel panic, but this panic is a physiological state, is a normal performance. Everyone reacts differently to the increase of heartbeat after this kind of activity or after emotional excitement, some people are sensitive and feel panic. However, the panic caused by organic or heart problems is dangerous and needs to be treated in hospital in time.