Syncope, commonly known as fainting, is a transient loss of consciousness caused by a transient lack of cerebral blood flow. It is characterized by pallor, cold sweat, vomiting and stooling, weak pulse, apathy or irritability, and even sudden fainting and unconsciousness. There are many types of syncope, and the rescue methods vary from one type to another. Here are a few common syncope home rescue methods: 1, a transient syncope: also called simple, vascular neurological syncope, mostly seen in adolescents. Often caused by a strong stimulus, such as fear, severe pain, the death of a loved one, etc.. Transient syncope occurs mostly in standing, with aura of general discomfort, palpitations, chest tightness, nausea, and blurred vision. The patient may wake up after a few seconds or minutes of syncope, and there are no sequelae after the attack, but there is temporary forgetfulness, mental confusion, dizziness and weakness. For this type of syncope, the patient should be made to lie down quickly, keep the head low and feet high position to improve the blood supply to the brain, and untie the collar and belt of the patient to make him breathe freely. 2, postural hypotensive syncope: the attack is in the prone position or squatting position when suddenly stand up, mostly seen in the elderly or often lying down for a long time. The reason is the sudden change of position, the blood in the abdomen and head quickly flow to the lower limbs, the blood supply to the head is relatively reduced, there is temporary cerebral ischemia, manifested as blackness in front of the eyes, there are flashes of gold stars, lasting a short time. For such patients, it is usually advisable to take some tonic pills, and physical exercise should also be strengthened. Patients should rise slowly or hold things when standing, and should not squat for too long. 3, hypoglycemic syncope: mostly seen in people who are severely hungry or have eaten little for a long time, diabetic ketoacidosis and hypoglycemic patients. For this type of fainting patients, should quickly let them lie down, such as consciousness, can give sugar water, food. If the hypoglycemia is more serious and in a coma state, they can also wake up quickly by injecting appropriate amount of hypertonic glucose. 4. Cardiogenic syncope: It is caused by abnormal heart function and sudden reduction of cardiac blood output. Most of this syncope has sudden onset, longer duration and more dangerous condition, and should be rescued with all efforts. First aid is appropriate to use boxing anterior chest area or chest cardiac compressions, and quickly call an ambulance. 5, urinary syncope: mostly occurs at night when you get up to urinate, mainly because the abdominal pressure drops sharply after suddenly getting up and forceful urination, so that the upper body blood back into the abdominal cavity, resulting in cerebral ischemia and syncope, for this type of syncope, the main preventive measures are to take a sitting position when urinating at night, such as standing urination, should hold the object, defecation force is not too large. 6, violent cough syncope: when the body coughs violently, the thoracic and abdominal cavity pressure increases, which will prevent the return of venous blood, reducing the amount of blood transfusion to the heart, resulting in cerebral ischemia and hypoxia. In addition, an increase in cerebrospinal fluid pressure during coughing raises intracranial pressure, which can also cause transient ischemia in the brain, leading to syncope. Cough syncope is only caused by transient cerebral ischemia and hypoxia, and its own consequences are usually not serious, but because it can cause serious accidental injury when a fall occurs suddenly, it is important to be vigilant. In the event of a violent cough, the body should be relaxed as much as possible, either in a sitting or semi-recumbent position, avoiding frequent walking, and oxygen can be administered if possible. In short, regardless of the type of syncope, home emergency care should be taken, and then seek medical attention nearby.