I. Panic attacks 1. Seizures in the absence of objective danger, or seizures without obvious and fixed triggers, so that the seizure is unpredictable; 2. The interval between two seizures, there are no obvious symptoms other than fear of another seizure; 3. The typical manifestation of seizures is often the patient in daily activities, suddenly appearing strong fear, as if about to die (near-death feeling) or about to lose their minds (sense of loss of control), so that the patient It is unbearable. At the same time, the patient feels palpitations, as if the heart is about to jump out of the mouth, chest tightness, chest pain, shortness of breath, and a feeling of choking in the throat. As a result, the patient screams, calls for help, or runs outside. Some are accompanied by significant vegetative symptoms, such as hyperventilation, dizziness, excessive sweating, facial flushing or pallor, tremor, numbness of hands and feet, gastrointestinal discomfort, etc. There may also be painful experiences such as depersonalization and disintegration of reality; 4. The attack is sudden, peaking within 10 minutes, usually not more than one hour. The person is conscious during the attack and can recall the attack afterwards. Although these seizures last for a short period of time, usually 5-10 minutes, rarely more than an hour, they can be relieved on their own and remain as normal, but they can suddenly recur again soon. Patients have frequent attacks, at least 3 times in a month, or the first typical attack followed by anxiety for fear of another attack often lasts for more than a month; 5. The attack is not limited to any specific situation or a certain type of environment (unpredictability), and most patients are nervous and anxious in the interval for fear of another attack, and some symptoms of hyperactivity of the vegetative nerves may appear, called anticipatory anxiety. In the interictal period, most patients actively avoid some activities for fear of not getting help during an attack, such as not wanting to go out alone, not wanting to go to crowded places, not wanting to travel by car, etc., or asking others to accompany them when they go out (at this time and with agoraphobia). Panic attack patients can also have depressive symptoms, some have suicidal tendencies, need to pay attention to prevent; 6, panic attacks as secondary symptoms (panic attack syndrome), can be seen in a variety of different mental disorders, such as phobias, depression, etc., and need to be distinguished from certain physical diseases, such as epilepsy, heart attack, etc. Generalized anxiety 1, characterized by the lack of clear objects and specific content of the worry and nervousness (free-floating anxiety) or excessive worry or annoyance about certain problems in real life (overly worried expectation). There are also significant autonomic symptoms, muscle tension and motor agitation that are difficult to tolerate and impossible to relieve. 2. Patients are often in a state of distraction, fearing that something bad will happen to them; 3. They are often accompanied by vegetative symptoms such as panic, rapid heartbeat, chest tightness, shortness of breath, dizziness, excessive sweating, facial flushing or pallor, dry mouth, feeling of obstruction in swallowing, stomach discomfort, nausea, abdominal pain, abdominal rise, diarrhea, frequent urination, and other vegetative anxiety; some patients show easy startle, easy startle response to external stimuli, and difficulty in concentration. Some patients show over-vigilance such as easy startle, jumpy reaction to external stimuli, difficulty in concentration, difficulty in sleeping, easy to wake up and easily irritated; some may show sexual dysfunction such as impotence, premature ejaculation, menstrual disorder and lack of sexual desire; 4. The course of the disease and prognosis of generalized anxiety disorder starts slowly, often without obvious causes, and the course of the disease can be extended for several years. Panic attacks have a sudden onset, but are not caused by a major event. About 41-59% of patients recover or improve, and a few have a poor prognosis; those who are female, young, with a short course and good personality before the illness have a better prognosis, and those who have a history of syncope, agitation, personality disintegration and other hysterical tendencies, and those who have thoughts of lightness of life have a poor prognosis. It should be noted that the mortality rate of suicide in patients with anxiety disorders is similar to that of depression.