Patients with angina pectoris, especially with the next or family quarrel when suddenly angry, the patient will cover the heart, this is the most common angina pectoris, may also be myocardial infarction. When angina is found, such as the way of reasoning is as follows: 1. First of all, let the patient sit down and rest, it is best not to lie down. Because lying down when the amount of return blood will increase, will increase the burden on the heart, so in this case try to take a semi-sitting position; 2, medication, to sublingual nitroglycerin or heart salve, containing about 5 minutes, the patient may be relieved; 3, when the patient after taking nitroglycerin or heart salve, the pain in the precordial area is not relieved, in this case to immediately call 120, it is best not to go to the hospital on their own. Because in the time of going to the hospital by themselves, it may aggravate the patient’s condition. Some patients are awake, unwilling to let others carry them and willing to walk by themselves, but walking will aggravate their heart burden. So it is better to call 120 in this case and let the 120 doctor come to the scene to save the patient.