The pain in the concave area between the two chests is also known as pain in the precordial region. Be especially careful when there is pain in the precordial region, it may be angina pectoris, coronary heart disease, myocardial infarction, or pain caused by a tear in the aorta. First of all, you need to rest immediately, either lying down or sitting on a chair, to rest immediately and no more strenuous activities. If there are drugs such as quick-acting heart pills on the side, they should be taken immediately to relieve the pain caused by vascular spasm and effectively relieve angina pectoris as well as myocardial infarction and other conditions. The patient should be immediately called 120, carried to the car by 120 stretcher, and then transferred to the hospital for treatment, blood sampling, electrocardiogram, chest CT and other tests to rule out serious pathologies.