Anxiety is an unpleasant emotional response to an adverse environment. To a certain extent, anxiety is a “protective reaction” because it forces people to develop the subjective will to escape or get rid of the bad environment. It is impossible for anyone to have a smooth life, so everyone will have different levels of anxiety. Under normal circumstances, people can have different emotional reactions to the environment or matters they are exposed to, such as students who cannot eat or sleep well before entrance exams, or athletes who get chills on their limbs, sweaty palms, and rapid heartbeat before a competition. As the situation improves, the symptoms will slowly disappear and the emotions will stabilize, which cannot be considered a disease. It can only be considered a disease for people for whom very small setbacks that occur in everyday life cause strong emotional reactions. In clinical practice, we call a group of symptoms centered on severe anxiety caused by a very minor cause “anxiety disorder”. According to modern psychology, anxiety disorders belong to the category of moderate mental ill health. With the development of society and the increasing competition, the number of people suffering from anxiety disorders is increasing. The prevalence rate in Western countries is 3-5%, and the proportion of patients in China is gradually rising to 2-3%, especially in groups with mainly mental work, such as scientific research, teaching, institutions, management and other occupations, the number of patients is higher than that of manual workers, so it is necessary to pay attention to this part of the population. 1. Clinical manifestations Anxiety disorders occur mostly in young and middle-aged groups, and the triggering factors are mainly related to people’s personality and environment. The former is mostly seen in those who are introverted, shy and too neurotic, while the latter is often closely related to fierce competition, overload work, long-term mental work and interpersonal tension. Some patients have atypical triggers. Clinically, physicians often divide anxiety disorders into two categories: acute anxiety and chronic anxiety. (1) Acute anxiety: It is also called “panic disorder”. The main manifestation is panic-like attacks, which occur more often at night during sleep, with a feeling of near death. The patient’s heart beats violently, the chest is suffocated, there is a feeling of congestion in the throat and difficulty in breathing. The excessive whistling caused by panic leads to whistling alkalosis (alkaline blood due to excessive carbon dioxide whistling), which in turn induces numbness in the limbs, numbness around the mouth, pallor, and abdominal cramps, further aggravating the patient’s fear and causing a nervous breakdown. These patients are often emotional and nervous when they visit the doctor, often giving the physician the illusion of a cardiovascular disease attack. Usually acute anxiety attacks last for a few minutes or hours, and when the attack is over or after appropriate treatment, the symptoms can be relieved or disappear. (2) Chronic anxiety: It is also called “generalized anxiety”. Acute anxiety often arises on the background of chronic anxiety, but more patients mainly show the symptoms of chronic anxiety. The typical symptoms of chronic anxiety include five major symptoms, namely panic, fatigue, nervousness, shortness of breath and chest pain. In addition, there are tension, cold sweat, fainting, belching, nausea, abdominal distension, constipation, impotence, and urinary frequency and urgency, etc. It is sometimes difficult to distinguish them from neurasthenia or other specialized diseases, so a physician needs to have a comprehensive and detailed understanding of the condition to avoid misdiagnosis. Sometimes some necessary auxiliary tests can help to exclude organic diseases, such as electrocardiogram, X-ray chest film, gastrointestinal imaging, gastroscopy, etc. can help physicians to detect diseases. However, although the subjective symptoms of anxiety disorders are severe, the objective signs are very mild or negative. 2. Prevention and treatment of anxiety disorders It is a painful thing to suffer from anxiety disorders, which can affect your life and work, and cause tension to your colleagues around you. But it should be recognized that anxiety is a normal person also have emotional performance, only when the development of a certain degree will appear pathological. Therefore, the right to learn to temperament, regulate emotions, you can effectively prevent the occurrence of disease. Especially for those adolescents who are impatient and introverted, they should constantly overcome their weaknesses in character and learn to get along with their colleagues around them; to improve their ability to deal with complex things, and to be calm and unperturbed in the world is an effective means to prevent anxiety from arising. (1) Psychotherapy: Under the guidance of a psychiatrist, fully understand the causes and background of anxiety disorders and learn to transfer or resolve mental stress. Through the exchange of ideas with relatives and friends, or adjusting the life of off days, can also largely reduce the mental burden and anxiety. (2) Diet therapy: Patients suffering from anxiety disorders should pay attention to their diet. Generally speaking, for patients with gastrointestinal symptoms, they should arrange their lives rationally and prevent overeating or irregular eating to avoid increasing the burden on the gastrointestinal tract and aggravating their symptoms. For patients with heart symptoms, they should stay away from stimulating tobacco, alcohol, strong tea, coffee, spicy food, etc., because they can cause sympathetic excitement, rapid heartbeat, premature heartbeat, etc., making the existing symptoms more prominent. It is recommended to take light, easy-to-digest food and not to rest immediately after eating. For those with bloating and constipation, you can also take drugs to help digestion and laxative. (3) Medication: It is the main means of treating anxiety disorders at present. If used in combination with the above methods, it can often control symptoms and shorten the course of treatment. The drugs commonly used in clinical practice are anti-anxiety drugs, which mainly act on the limbic system, thalamus, amygdala and other parts of the central nervous system and can significantly improve mood and combat anxiety, such as benzodiazepines (diazepam, clonazepam, Glaxoquine, Lola, etc.), or antidepressants such as Enox, Seroquel, Zoloft. However, most of these drugs have certain side effects or addictive properties, and need to be used under the guidance of a physician, and should not be taken indiscriminately. In addition, you can also add some other drugs for different system prominent symptoms, such as heartburn can be added to the use of insulin, betalac, etc.; indigestion can be used multi-enzyme tablets, morpholine, etc..