When the weather is hot, people will feel chest tightness. When the air conditioner is turned on, the indoor temperature will drop, and people will feel comfortable.

Chest tightness is a subjective feeling, that is, difficulty or insufficient breathing. Light as if nothing had happened, heavy feeling uncomfortable, as if being pressed by a stone in the chest, and even breathing difficulties. It may be the functional manifestation of body organs, or it may be one of the earliest symptoms of human diseases. People of different ages have different reasons for chest tightness, different treatment methods and different consequences.

1. Functional chest tightness (that is, chest tightness without organic lesions): If you stay in a room with closed doors and windows and no ventilation for a long time, or encounter some unpleasant things, or even have an argument with people, or in a low-pressure climate, you will often feel chest tightness and fatigue. After a short rest, open the window for ventilation or breathe fresh air outdoors, relax and adjust your mood, and you will soon return to normal. Chest tightness like this can be said to be functional chest tightness, which does not require tension or treatment.

In the daily diagnosis and treatment of patients, we often meet some patients who complain of chest tightness, palpitation and chest pain. They thought they had a "heart attack" and came to the hospital with anxiety. However, most patients were examined by X-ray, electrocardiogram and ultrasonic electrocardiogram. This is not an organic heart disease, but a dysfunctional cardiac neurosis with cardiovascular symptoms as the main symptom (that is, cardiac autonomic nervous dysfunction).

Why does the heart have neurosis? Due to anxiety, tension, emotional excitement, trauma and other factors, the excitement and inhibition of the central nervous system are disturbed, and the cardiovascular system regulated by autonomic nerves is also disordered, thus causing a series of symptoms of excessive tension of sympathetic nerves. In addition, overwork, too little physical activity, and lack of proper exercise in the circulatory system make it impossible to adapt to a little activity or fatigue, thus producing excessive cardiovascular reactions and causing this disease.

Cardiac neurosis is a kind of systemic neurosis (that is, the manifestation of autonomic nerve dysfunction in cardiovascular system), and its symptoms are various. The most common symptoms are palpitation, dyspnea, precordial pain and general fatigue, as well as irritability, insomnia, sweating, trembling, dizziness and dreaminess.

Although the disease is not life-threatening, it is sometimes bad and can't be cured. In severe cases, they can't even live and work normally, which makes patients miserable. Because there is no organic disease in the heart of patients with this disease, it has not attracted enough attention for a long time, and there are few related research reports. Clinically, due to the lack of effective diagnostic methods and treatment measures, missed diagnosis and mistreatment are not uncommon, especially when there are a few premature beats or ST-T changes in the disease. Without further examination, patients are often mistaken for viral myocarditis or coronary heart disease and treated, which is counterproductive. Special treatment of cardiac neurosis;

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Second, pathological chest tightness (that is, chest tightness with organic lesions): Chest tightness can be not only physiological, but also caused by diseases of certain organs in the body, that is, pathological chest tightness. For example:

1. Respiratory tract obstruction: tracheobronchial tumor, tracheal stenosis, tracheal external pressure (goiter, mediastinal tumor);

2. Lung diseases: emphysema, bronchitis, asthma, atelectasis, pulmonary infarction, pneumothorax;

3. Heart disease: some congenital heart diseases, rheumatic valvular heart disease, coronary heart disease and heart tumors;

4. Diaphragm diseases: diaphragm swelling, diaphragm paralysis;

5. Body fluid metabolism and acid-base imbalance.

Pathological chest tightness can occur suddenly or slowly. Most emergencies are caused by acute traumatic or spontaneous pneumothorax, acute asthma, acute heart attack caused by tracheal foreign bodies, acute lung infarction and so on. Slow chest tightness is that with the extension of the course of the disease, the symptoms gradually worsen. Chest tightness in children often suggests congenital heart disease or mediastinal tumor; Chest tightness in young people often suggests spontaneous pneumothorax, mediastinal tumor and rheumatic valvular heart disease. Chest tightness in the elderly mostly suggests emphysema and coronary heart disease.