Although heart disease morbidity and mortality rates have declined substantially in recent years, heart disease is still the leading cause of death. One reason for this is that many people do not get help in time when they develop symptoms of heart disease; another reason is that heart disease symptoms are not always dramatic and obvious, and some early symptoms are overlooked and lead to a major disaster. Because some symptoms are hard to recognize as the first signs of heart disease, even though some doctors suggest not to ignore these warning signs, they are often not taken seriously, and these symptoms are sometimes thought of as stomach pain, myalgia, or other illnesses, without thinking that they may be heart disease. Therefore, the following symptoms must be taken seriously enough when they occur, because it is likely to be a signal of heart disease. 1, anxiety heart disease can cause intense anxiety or fear of death, most of the survivors of heart disease have experienced the “sense of shock”. 2, chest pain chest pain is a typical symptom of a heart attack, but not all heart disease patients have chest pain symptoms. The chest pain caused by heart disease is mainly confined to the left part of the sternum, and female patients tend to feel a burning sensation in the chest, rather than chest tightness or chest pain. 3, coughing persistent cough or asthma is a sign of heart failure, which is the result of fluid in the lungs. Sometimes, heart failure patients may cough up bloody sputum. A heart attack can cause dizziness and loss of consciousness, and these symptoms can be potentially dangerous due to arrhythmias. 5. Fatigue A heart attack can cause frequent fatigue, especially in women. Nausea or loss of appetite during a heart attack may have digestive symptoms, and abdominal edema caused by heart disease can interfere with appetite. 7. Pain During a heart attack, pain can extend from the chest to the shoulders, arms, elbows, back, neck, jaw, or abdomen. Sometimes the pain may not occur in the chest, but in other areas, and it is transient. Men with heart disease often feel pain in their left arm, and women have more pain in both arms or shoulder blades. 8. A rapid or irregular pulse, especially if accompanied by weakness, dizziness or shortness of breath, is a symptom of heart disease, heart failure or arrhythmia. If left untreated, some severe arrhythmias may lead to stroke, heart failure or sudden death. Shortness of breath may be a sign of heart attack or heart failure. Some heart attack patients do not have chest tightness and chest pain, but they have shortness of breath. When a heart attack occurs, shortness of breath is often accompanied by chest tightness, which can also occur before chest discomfort. 10, sweating sudden appearance of cold sweat is also a common sign of a heart attack, patients will keep sweating even if they are sitting still in a chair. 11, swelling heart failure can cause fluid accumulation, resulting in swelling of the feet, ankles, legs and abdomen, and can lead to sudden weight gain and loss of appetite. 12, weakness during a heart attack, some people will have severe, unexplained weakness symptoms. Some patients feel that the strength to hold a piece of paper with their fingers is gone.