When it comes to heart attacks, many older adults are on pins and needles. Indeed, heart attack, also called acute myocardial infarction, is a rapid blockage of all or most of the cardiovascular and coronary arteries due to various reasons. If our body is compared to a car, the heart is the engine, and the coronary arteries are the oil pipes of the engine. If the coronary arteries are completely blocked due to blood clots, the heart muscle will have no oil supply, and then acute myocardial infarction will occur, which can even lead to engine failure (fatal) in severe cases. The onset of heart attack is very rapid and dangerous, and if resuscitation is not timely, it can easily lead to massive myocardial necrosis due to lack of oxygen, which is life-threatening. Many elderly people have been killed by heart attacks at home or even in their sleep. However, most heart attack patients, there will be some early warning symptoms before the onset of the disease, some people even early symptoms 2 days in advance, if this time can go to the hospital in time to treat, the hope of survival will be greatly increased. 6 signals of acute heart attack 1. As soon as the patient is physically active or excited, body pain appears, and the pain disappears as soon as he rests. An important feature of heart attack is that it is related to exertion, and it is easy to develop as soon as you are tired, and it is good as soon as you rest. The pain is not necessarily heart-related; it may be shoulder pain, back pain, stomach pain or even toothache or diarrhea. But as long as these pains are related to exertion, it is best to go to the hospital to have your heart checked. 2. Older patients with coronary heart disease suddenly experience an increase in angina and an increase in the number of attacks. For example, if angina can be controlled by taking medicine once a day, but not twice a day now, or if you can’t control it even with medicine, you must be highly alert to heart attack. 3, without warning, the sudden appearance of heartburn and suffocating symptoms. This reflects the patient’s heart is already very bad, must be alert. 4, the patient is not active, the day is not hot, but there is difficulty in breathing, sweating, which should also be alert to the heart attack. 5.Scheduled chest pain every day, such as pain after eating or pain before rest, should also be alert to heart attack. 6.Patients who have not been examined for heart disease suddenly have frequent symptoms such as chest pain and chest tightness. This is mostly seen in young people, young people work long hours, if all day long, it is easy to cause sudden cardiovascular blockage, triggering a heart attack, the probability of sudden death is also high. Young people who often stay up late to surf the Internet and work at night must pay attention. First aid for acute heart attack If a patient has a sudden acute heart attack, if there is no helper around, the patient himself should immediately call the 120 emergency number, open the door of the room and keep quiet and lying down, waiting for help. If there is a family member around the patient, the family member should immediately remain calm and take first aid measures decisively: 1.Call 120 emergency number. 2.Lay the patient flat on the ground with the feet slightly elevated, forbid to move the patient. 3.If there is always a first aid kit at home, immediately let the patient take nitroglycerin under the tongue, and aspirin 300mg chew. 4.Open the windows to keep the air circulating, and if available, give the patient oxygen. 5.If the patient’s heart suddenly stops beating, family members should not pick it up and shake it to call, but immediately take chest compressions and artificial respiration first aid measures. Until the patient’s heartbeat is restored or until the doctor arrives.