Cardiac distress is known in medical terminology as chest tightness and palpitations. The causes of chest tightness and palpitations are not only heart disease, such as coronary heart disease and arrhythmia, but also other pathologies in the adjacent heart organs, such as gastroesophageal reflux. Non-organic diseases such as psychosomatic factors may also cause the feeling of heartburn and should be judged based on the accompanying symptoms and medical history. The conditions that may be associated with heartburn are as follows. 1. Heart disease: Heart disease can cause heartburn. Common heart conditions include coronary artery disease and arrhythmias. Coronary heart disease can cause myocardial ischemia and hypoxia, causing heart congestion and heart pain feeling blocked in the chest. Coronary heart disease is related to exertion, emotional excitement, etc. If it is angina, rest or nitroglycerin inhalation can relieve. When arrhythmias occur, such as atrial fibrillation, atrial flutter, frequent premature beats, ventricular tachycardia, etc. affect the effective contraction of the myocardium, which can lead to a reduction in cardiac output and insufficient blood supply to the myocardium, causing chest tightness and panic. 2, gastroesophageal reflux disease: heart difficulty may also be gastroesophageal reflux disease. When gastroesophageal reflux disease occurs reflux stimulates the esophagus and can cause chest pain, sometimes similar to angina pectoris. It may be accompanied by reflux and a feeling of heartburn. This can be clarified by gastrointestinal endoscopy or ultrasound. Digestive system diseases are affected by feeding and antacid treatment, etc. 3, psychosomatic factors: psychosomatic factors are also very important causes of heartburn. For example, the symptoms of cardiac neurosis, which occurs in menopausal women, are very similar to those of heart disease. However, psychological factors cannot be diagnosed at will, only in the case of careful examination still can not find a clear cause can be considered cardiac neurosis and psychological factors caused. The symptom of cardiac distress suggests the possibility of cardiovascular disease, and cardiovascular disease such as heart attack and ventricular tachycardia can lead to death if not treated in time, which is relatively dangerous. Therefore, the symptoms of cardiac distress must first be ruled out cardiovascular system diseases regardless of the condition caused by cardiac distress, patients need to go to the hospital as soon as possible to rule out critical illnesses.